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Godo Kaisha Ip Bridge 1 patents


Recent patent applications related to Godo Kaisha Ip Bridge 1. Godo Kaisha Ip Bridge 1 is listed as an Agent/Assignee. Note: Godo Kaisha Ip Bridge 1 may have other listings under different names/spellings. We're not affiliated with Godo Kaisha Ip Bridge 1, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "G" | Godo Kaisha Ip Bridge 1-related inventors


Integrated circuit that controls a search space setting process

An integrated circuit, for example, included in a wireless communication base station, controls a process that includes mapping a first downlink control channel to control channel element(s) (cce(s)) in a first search space comprised of a first plurality of cces, the first downlink control channel including resource assignment information, which indicates a resource allocated to a terminal in a component carrier n (ccn) out of one or more component carrier(s) (cc(s)), and mapping a second downlink control channel to cce(s) in a second search space comprised of a second plurality of cce(s), the second downlink control channel including resource assignment information, which indicates a resource allocated to the terminal in a component carrier n+1 (ccn+1) out of the cc(s), the first plurality of cces and the second plurality of cces are consecutive. The process also includes transmitting the first and the second downlink control channels to the terminal.. ... Godo Kaisha Ip Bridge 1

Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus

An image decoding method is provided which includes a time information determination step of determining time information of a current picture, a first reference picture referred to by the current picture and a second reference picture referred to by the current picture; a scaling parameter calculation step of calculating a scaling parameter based on a time distance between the first reference picture and a second reference picture; a weighting coefficient determination step of determining two weighting coefficients based on the scaling parameter; a predictive pixel value generation step of generating a predictive pixel value of the current picture by scaling a pixel value of the first reference picture and a pixel value of the second reference picture using the two weighting coefficients determined in the weighting coefficient determination step; and a decoding step of decoding the current picture using the predictive pixel value.. . ... Godo Kaisha Ip Bridge 1

Moving picture coding apparatus and moving picture decoding apparatus

. . A video encoder (70) for coding moving pictures comprising a buffer (16c) with a plurality of memory areas capable of storing frames composed of top fields and bottom fields, a motion estimation unit (19) operable to code, field by field, inputted pictures performing moving estimation and moving compensation by referring, field by field, to the picture data stored in a memory area, a motion compensation unit (16d), a subtractor (11), a transformation unit (13) and a quantization unit (14), a memory management unit (71) operable to manage, frame by frame, a plurality of memory areas, an inverse quantization unit (16a) and inverse discrete cosine transform unit (16b) operable to decode picture data in coded fields and store the picture data in the decoded field in any of the plurality of memory areas under the management by the memory management unit (71).. . ... Godo Kaisha Ip Bridge 1

Moving picture coding method and moving picture decoding method

According to a picture coding method, a coded picture is stored, as a reference picture, into a storage unit; commands indicating correspondence between reference pictures and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted.. . ... Godo Kaisha Ip Bridge 1

Interface apparatus and recording apparatus

An interface apparatus for designating a link destination, is provided with: a range designating device (110) for designating a desired range in a screen on which motion picture content is reproduced; a range mark setting device (107b) for superimposing and displaying a range mark indicating the designated range on the motion picture content; a movement operating device (110, 105, 107b) for moving the range mark in a desired direction, along with a lapse of reproduction time of the motion picture content in the screen; a link destination inputting device (110) for inputting link destination identification information as what corresponds to the range mark; and a holding device (106) for holding position information indicating a position of the range mark, in association with the link destination identification information and each time point in the reproduction time.. . ... Godo Kaisha Ip Bridge 1

Filtering strength determination method, moving picture coding method and moving picture decoding method

A moving picture coding apparatus includes an inter-pixel filter having filters for filtering decoded image data so as to remove block distortion which is high frequency noise around block boundaries. The inter-pixel filter includes filters having different filtering strengths. ... Godo Kaisha Ip Bridge 1

Moving picture decoding method for decoding a current block in a temporal direct mode

A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.. ... Godo Kaisha Ip Bridge 1

Picture coding method and picture decoding method

In a picture coding method for generating a coded signal corresponding to each picture by coding a plurality of coded signals, a switching picture which is capable of switching a plurality of coded signals and subsequent pictures of the switching picture can refer to only a group of pictures of the same time in the coded signals. More specifically, the case where picture numbers of an adjacent picture of an s picture and the s picture are not continuous is not considered as an error.. ... Godo Kaisha Ip Bridge 1

Integrated circuit that controls a search space setting process

An integrated circuit, for example, included in a wireless communication base station, controls a process that includes mapping a first downlink control channel to control channel element(s) (cce(s)) in a first search space comprised of a first plurality of cces, the first downlink control channel including resource assignment information, which indicates a resource allocated to a terminal in a component carrier n (ccn) out of one or more component carrier(s) (cc(s)), and mapping a second downlink control channel to cce(s) in a second search space comprised of a second plurality of cce(s), the second downlink control channel including resource assignment information, which indicates a resource allocated to the terminal in a component carrier n+1 (ccn+1) out of the cc(s), the first plurality of cces and the second plurality of cces are consecutive. The process also includes transmitting the first and the second downlink control channels to the terminal.. ... Godo Kaisha Ip Bridge 1

Communication device and integrated circuit

Provided is a radio communication base station device which can suppress a use amount of an srs communication resource. In this device, a correlation rule setting unit (102) sets a rule for correlating a preamble with an srs transmission time interval so that the preamble transmission time band and the srs transmission time band are in the same transmission time band. ... Godo Kaisha Ip Bridge 1

Picture decoding method for decoding coded picture data and performing distortion removal by comparing pixel difference values with threshold

A coding distortion removal method is provided for removing coding distortion in an area disposed on both sides of a block boundary between a first block and an adjacent second block in a picture having a plurality of blocks, each block being adaptively coded either as a field structure block, comprising only even field pixels or comprising only odd field pixels, or a frame structure block, comprising odd field pixels and even field pixels. The method includes detecting whether the block boundary between the first block and the adjacent second block is a block boundary between a field structure block and a frame structure block, and performing a coding distortion removal process on the first block and the adjacent second block. ... Godo Kaisha Ip Bridge 1

A moving picture coding method and a moving picture decoding method

A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number defrefno and a variable length coding unit (107) for performing variable length coding on coded residual data eres, a prediction type predtype, a reference picture number refno2 and motion vectors mv1, mv2 on a block-by-block basis, and outputting them as coded moving picture data str.. . ... Godo Kaisha Ip Bridge 1

A moving picture coding method and a moving picture decoding method

A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number defrefno and a variable length coding unit (107) for performing variable length coding on coded residual data eres, a prediction type predtype, a reference picture number refno2 and motion vectors mv1, mv2 on a block-by-block basis, and outputting them as coded moving picture data str.. . ... Godo Kaisha Ip Bridge 1

Variable length coding method and variable length decoding method

A variable length coding method is comprised of: a coefficient value scanning step in which an rl sequence generation unit, a reordering unit, and a binarization unit scan coefficient values within a block in a predetermined scanning order starting at a higher-frequency component toward a lower-frequency component; and an arithmetic coding step in which an arithmetic coding unit and a table storage unit perform arithmetic coding on the absolute values of the coefficient values according to the scanning order used in the coefficient value scanning step, by switching between probability tables for use, wherein, in the arithmetic coding step, a probability table to be used is switched to another probability table in one direction, when the arithmetic-coded absolute values of the coefficient values include an absolute value exceeding a predetermined threshold value.. . ... Godo Kaisha Ip Bridge 1

01/04/18 / #20180007357

Variable length coding method and variable length decoding method

A variable length coding method is comprised of: a coefficient value scanning step in which an rl sequence generation unit, a reordering unit, and a binarization unit scan coefficient values within a block in a predetermined scanning order starting at a higher-frequency component toward a lower-frequency component; and an arithmetic coding step in which an arithmetic coding unit and a table storage unit perform arithmetic coding on the absolute values of the coefficient values according to the scanning order used in the coefficient value scanning step, by switching between probability tables for use, wherein, in the arithmetic coding step, a probability table to be used is switched to another probability table in one direction, when the arithmetic-coded absolute values of the coefficient values include an absolute value exceeding a predetermined threshold value.. . ... Godo Kaisha Ip Bridge 1

01/04/18 / #20180006861

Ofdm-cdma equipment and method

An ofdm signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into n subcarriers and second signals into m subcarrier(s) to form an ofdm signal, wherein n is larger than m. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. ... Godo Kaisha Ip Bridge 1

12/21/17 / #20170366297

Radio transmission device and method

A radio transmitting device and method enables reduction of an increase of cgi memories for the control channel and an improvement of the throughput of the data channel. When multiplex transmission through the control channel and the data channel is carried out and when adaptive modulation is applied to both channels, an mcs selecting section is provided with one cqi table for the data channel and cqi tables for the control channel, and a table selecting mcs determining section selects one of the tables depending on the transmission bandwidth of the terminal and determines the mcs of the control channel while looking up the selected cqi table.. ... Godo Kaisha Ip Bridge 1

12/14/17 / #20170359809

Base station device, terminal device and communication method

In a terminal, a control unit transmits a bundle response signal using a resource in a basic region of an uplink control channel in an uplink unit band of a unit band group when no error is detected in each of a plurality of pieces of downlink data of the unit band group, the uplink control channel in the uplink unit band being associated with a downlink control channel in a basic unit band that is a downlink unit band in which a broadcast channel signal including information relating to the uplink unit band is transmitted, and the control unit transmits the bundle response signal using a resource in an additional region of the uplink control channel when an error is detected in each of the plurality of pieces of downlink data.. . ... Godo Kaisha Ip Bridge 1

10/26/17 / #20170311323

Integrated circuit for sequence reporting and sequence generation

Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a zadoff-chu sequence or a gcl sequence allocated for a cell. Indexes starting at 1 are correlated to different zc sequences and are allocated for cells so that the indexes are continuous. ... Godo Kaisha Ip Bridge 1

10/05/17 / #20170289565

Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus

An image decoding method is provided which includes a time information determination step of determining time information of a current picture, a first reference picture referred to by the current picture and a second reference picture referred to by the current picture; a scaling parameter calculation step of calculating a scaling parameter based on a time distance between the first reference picture and a second reference picture; a weighting coefficient determination step of determining two weighting coefficients based on the scaling parameter; a predictive pixel value generation step of generating a predictive pixel value of the current picture by scaling a pixel value of the first reference picture and a pixel value of the second reference picture using the two weighting coefficients determined in the weighting coefficient determination step; and a decoding step of decoding the current picture using the predictive pixel value.. . ... Godo Kaisha Ip Bridge 1

10/05/17 / #20170289564

Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus

An image decoding method is provided which includes a time information determination step of determining time information of a current picture, a first reference picture referred to by the current picture and a second reference picture referred to by the current picture; a scaling parameter calculation step of calculating a scaling parameter based on a time distance between the first reference picture and a second reference picture; a weighting coefficient determination step of determining two weighting coefficients based on the scaling parameter; a predictive pixel value generation step of generating a predictive pixel value of the current picture by scaling a pixel value of the first reference picture and a pixel value of the second reference picture using the two weighting coefficients determined in the weighting coefficient determination step; and a decoding step of decoding the current picture using the predictive pixel value.. . ... Godo Kaisha Ip Bridge 1

09/28/17 / #20170280153

Field/frame adaptive decoding with field/frame index

A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.. . ... Godo Kaisha Ip Bridge 1

09/28/17 / #20170280152

Field/frame adaptive decoding with field/frame index

A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.. . ... Godo Kaisha Ip Bridge 1

09/21/17 / #20170272772

Field/frame adaptive decoding with field/frame index

A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.. . ... Godo Kaisha Ip Bridge 1

09/14/17 / #20170264894

Moving picture decoding method for decoding a current block in a temporal direct mode

A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.. ... Godo Kaisha Ip Bridge 1

08/17/17 / #20170237522

Communication device and communication method

In mimo communication, a communication device is provided that transmits a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency. A modulation encoding unit encodes and modulates transmission data transmitted to a communication partner and the transfer rate request signal is the plurality of transmission antennas. ... Godo Kaisha Ip Bridge 1

08/03/17 / #20170223683

Integrated circuit that controls a search space setting process

An integrated circuit, for example, included in a wireless communication base station, controls a process that includes mapping a first downlink control channel to control channel element(s) (cce(s)) in a first search space comprised of a first plurality of cces, the first downlink control channel including resource assignment information, which indicates a resource allocated to a terminal in a component carrier n (ccn) out of one or more component carrier(s) (cc(s)), and mapping a second downlink control channel to cce(s) in a second search space comprised of a second plurality of cce(s), the second downlink control channel including resource assignment information, which indicates a resource allocated to the terminal in a component carrier n+1 (cc+1) out of the cc(s), the first plurality of cces and the second plurality of cces are consecutive. The process also includes transmitting the first and the second downlink control channels to the terminal.. ... Godo Kaisha Ip Bridge 1

07/06/17 / #20170196023

Radio transmission device and radio transmission method

A mobile station includes communication control circuitry that selects a preamble contained in a first random access preamble group when a message size based on data available for transmission does not meet a first condition or when a value calculated based on a reference signal received power of downlink does not meet a second condition, a preamble contained in a second random access preamble group when the message size based on data available for transmission meets the first condition and the value calculated based on the reference signal received power of downlink meets the second condition, and a preamble contained in the third random access preamble group for a handover, independent of the message size based on data available for transmission and the value calculated based on the reference signal received power of downlink. The communication control circuitry also generates and transmits a selected preamble.. ... Godo Kaisha Ip Bridge 1

05/11/17 / #20170134757

Image coding and decoding system for removal of coding distortion by comparing pixel difference values with thresholds

An image coding and decoding system is provided that includes an image coding apparatus and an image decoding apparatus. The image coding apparatus includes a coder that codes an input image, a first decoder that decodes the coded image to obtain a first reconstructed image, a first pixel difference value obtainer, a first average deriver, a first threshold value setter, a first comparator, and a first remover that removes a coding distortion. ... Godo Kaisha Ip Bridge 1

05/11/17 / #20170134142

Radio transmission device and radio transmission method

It is possible to improve the cqi reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or a residual interference is generated between cyclic shift amounts of different zc sequences. For the second symbol and the sixth symbol of the ack/nack signal which are multiplexed by rs of cqi, (+, +) or (−, −) is applied to a partial sequence of the walsh sequence. ... Godo Kaisha Ip Bridge 1

03/23/17 / #20170085905

Motion compensation method, picture coding method and picture decoding method

A picture coding apparatus includes a motion vector estimation unit and a motion compensation unit. The motion vector estimation unit selects one method for deriving a motion vector of a block to be motion-compensated, depending on a motion vector of a block located in a corner of a decoded macroblock from among a group of blocks that compose the decoded macroblock corresponding to the current macroblock to be coded and determines the motion vector derived by the selected method for derivation to be a candidate of the motion vector of the current macroblock to be coded. ... Godo Kaisha Ip Bridge 1

03/23/17 / #20170085351

Communication device and integrated circuit

Provided is a radio communication base station device which can suppress a use amount of an srs communication resource. In this device, a correlation rule setting unit (102) sets a rule for correlating a preamble with an srs transmission time interval so that the preamble transmission time band and the srs transmission time band are in the same transmission time band. ... Godo Kaisha Ip Bridge 1

03/16/17 / #20170078068

Receiving apparatus, receiving method and integrated circuit

A radio communication apparatus is disclosed that enables the influence of the feedback information on the channel capacity to be kept to the minimum without reducing the transmission efficiency of information by transmission of pilot symbol. In the apparatus, a delay dispersion measuring section generates a delay profile using the received signal, and measures delay dispersion indicative of dispersion of delayed versions. ... Godo Kaisha Ip Bridge 1

02/16/17 / #20170048521

Picture coding method and picture decoding method

In a picture coding method for generating a coded signal corresponding to each picture by coding a plurality of coded signals, a switching picture which is capable of switching a plurality of coded signals and subsequent pictures of the switching picture can refer to only a group of pictures of the same time in the coded signals. More specifically, the case where picture numbers of an adjacent picture of an s picture and the s picture are not continuous is not considered as an error.. ... Godo Kaisha Ip Bridge 1

02/09/17 / #20170041930

Integrated circuit for sequence reporting and sequence generation

Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a zadoff-chu sequence or a gcl sequence allocated for a cell. Indexes starting at 1 are correlated to different zc sequences and are allocated for cells so that the indexes are continuous. ... Godo Kaisha Ip Bridge 1

02/09/17 / #20170041627

Field/frame adaptive decoding with field/frame index

A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.. . ... Godo Kaisha Ip Bridge 1

02/09/17 / #20170041611

Variable length coding method and variable length decoding method

A variable length coding method is comprised of: a coefficient value scanning step in which an rl sequence generation unit, a reordering unit, and a binarization unit scan coefficient values within a block in a predetermined scanning order starting at a higher-frequency component toward a lower-frequency component; and an arithmetic coding step in which an arithmetic coding unit and a table storage unit perform arithmetic coding on the absolute values of the coefficient values according to the scanning order used in the coefficient value scanning step, by switching between probability tables for use, wherein, in the arithmetic coding step, a probability table to be used is switched to another probability table in one direction, when the arithmetic-coded absolute values of the coefficient values include an absolute value exceeding a predetermined threshold value.. . ... Godo Kaisha Ip Bridge 1

02/02/17 / #20170034541

Variable length coding method and variable length decoding method

The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. ... Godo Kaisha Ip Bridge 1

02/02/17 / #20170034540

Variable length coding method and variable length decoding method

The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. ... Godo Kaisha Ip Bridge 1

02/02/17 / #20170034539

Variable length coding method and variable length decoding method

The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. ... Godo Kaisha Ip Bridge 1

02/02/17 / #20170034514

Variable length coding method and variable length decoding method

The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. ... Godo Kaisha Ip Bridge 1

01/12/17 / #20170013273

Moving picture coding method and a moving picture decoding method

A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number defrefno and a variable length coding unit (107) for performing variable length coding on coded residual data eres, a prediction type predtype, a reference picture number refno2 and motion vectors mv1, mv2 on a block-by-block basis, and outputting them as coded moving picture data str.. . ... Godo Kaisha Ip Bridge 1

01/12/17 / #20170013272

Moving picture coding method and a moving picture decoding method

A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number defrefno and a variable length coding unit (107) for performing variable length coding on coded residual data eres, a prediction type predtype, a reference picture number refno2 and motion vectors mv1, mv2 on a block-by-block basis, and outputting them as coded moving picture data str.. . ... Godo Kaisha Ip Bridge 1

01/12/17 / #20170013271

Moving picture coding method and a moving picture decoding method

A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number defrefno and a variable length coding unit (107) for performing variable length coding on coded residual data eres, a prediction type predtype, a reference picture number refno2 and motion vectors mv1, mv2 on a block-by-block basis, and outputting them as coded moving picture data str.. . ... Godo Kaisha Ip Bridge 1








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