Patents by Inventor Kuniyuki Kajita
Kuniyuki Kajita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7152198Abstract: A coding/decoding technique capable of increasing the error correcting decoding performance and improving the communication quality. This technique divides, through code block segmentation prior to error correcting coding, transmission data with CRC-bit added into a predetermined number of code blocks so that the data length of each code block is an integer multiple of the data length of each transport block and ensures that CRC-bit exists at the end of each code block. Then, the technique performs error correcting coding on each code block after the division.Type: GrantFiled: April 20, 2001Date of Patent: December 19, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kuniyuki Kajita
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Publication number: 20050219071Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “?1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: ApplicationFiled: May 23, 2005Publication date: October 6, 2005Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Patent number: 6944348Abstract: A coding/decoding technique capable of increasing the error correcting decoding performance and improving the communication quality. This technique divides, through code block segmentation prior to error correcting coding, transmission data with CRC-bit added into a predetermined number of code blocks so that the data length of each code block is an integer multiple of the data length of each transport block and ensures that CRC-bit exists at the end of each code block. Then, the technique performs error correcting coding on each code block after the division.Type: GrantFiled: April 1, 2004Date of Patent: September 13, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kuniyuki Kajita
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Patent number: 6940428Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “?1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: GrantFiled: March 8, 2004Date of Patent: September 6, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Patent number: 6922159Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “?1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: GrantFiled: March 8, 2004Date of Patent: July 26, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Patent number: 6900320Abstract: A personal information control system that makes it easy to carry out a shift of personal information accompanying to a replacement of a portable telephone apparatus with a new one by carrying out control and maintenance of the personal information. The mobile station apparatus 100 comprises a user interface 110 that exchanges information with a user, a transmitting/receiving section 120 that carries out communication with a base station apparatus 200 via an antenna 150, a memory that stores personal information and its own user identification number and a control section 140 that controls the respective operations of the foregoing sections.Type: GrantFiled: July 24, 2001Date of Patent: May 31, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kuniyuki Kajita
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Publication number: 20050002477Abstract: Candidate limiting section 104 outputs to correlation value calculating section 105 only the TFCI coding sequences corresponding to TFCI numbers that are actually used based on TFCI numbers that are included in the group of TFCI numbers notified from a layer which is upper than the physical layer, correlation value calculating section 105 calculates the correlation values between the coding sequences outputted from candidate limiting section 104 and the received TFCI and stores the results in correlation value memory 106, maximum value detecting section 107 notifies error correction decoding section 108 of the TFCI number corresponding to the maximum correlation value among the correlation values stored in correlation value memory 106, and error correction decoding section 108 performs an error correction decoding on the data stored in data memory 103 according to the transmission format specified based on the notified TFCI number.Type: ApplicationFiled: July 29, 2004Publication date: January 6, 2005Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Kuniyuki Kajita, Maho Takita
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Patent number: 6813323Abstract: Candidate limiting section 104 outputs to correlation value calculating section 105 only the TFCI coding sequences corresponding to TFCI numbers that are actually used based on TFCI numbers that are included in the group of TFCI numbers notified from a layer which is upper than the physical layer, correlation value calculating section 105 calculates the correlation values between the coding sequences outputted from candidate limiting section 104 and the received TFCI and stores the results in correlation value memory 106, maximum value detecting section 107 notifies error correction decoding section 108 of the TFCI number corresponding to the maximum correlation value among the correlation values stored in correlation value memory 106, and error correction decoding section 108 performs an error correction decoding on the data stored in data memory 103 according to the transmission format specified based on the notified TFCI number.Type: GrantFiled: July 25, 2002Date of Patent: November 2, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kuniyuki Kajita, Maho Takita
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Publication number: 20040187062Abstract: A coding/decoding technique capable of increasing the error correcting decoding performance and improving the communication quality. This technique divides, through code block segmentation prior to error correcting coding, transmission data with CRC-bit added into a predetermined number of code blocks so that the data length of each code block is an integer multiple of the data length of each transport block and ensures that CRC-bit exists at the end of each code block. Then, the technique performs error correcting coding on each code block after the division.Type: ApplicationFiled: April 1, 2004Publication date: September 23, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventor: Kuniyuki Kajita
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Publication number: 20040174941Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “−1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: ApplicationFiled: March 8, 2004Publication date: September 9, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Publication number: 20040170236Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “−1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: ApplicationFiled: March 8, 2004Publication date: September 2, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Patent number: 6734810Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “−1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: GrantFiled: September 10, 2002Date of Patent: May 11, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Patent number: 6603409Abstract: In a puncturing section 102, input memory 201 temporarily stores data inputted to the puncturing section 102, a controller 202 distinguishes data to be added, a switch 203 selects data to be added in accordance with control of the controller 202, an adder 204 adds data (namely, data subjected to repetition by a transmitter side) selected by the switch 203, and output memory 205 temporarily stores data outputted from the puncturing section 102.Type: GrantFiled: October 26, 2001Date of Patent: August 5, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kuniyuki Kajita
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Publication number: 20030039324Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “−1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.Type: ApplicationFiled: September 10, 2002Publication date: February 27, 2003Inventors: Kuniyuki Kajita, Takashi Toda, Hidetoshi Suzuki, Masatoshi Watanabe
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Publication number: 20030012309Abstract: Candidate limiting section 104 outputs to correlation value calculating section 105 only the TFCI coding sequences corresponding to TFCI numbers that are actually used based on TFCI numbers that are included in the group of TFCI numbers notified from a layer which is upper than the physical layer, correlation value calculating section 105 calculates the correlation values between the coding sequences outputted from candidate limiting section 104 and the received TFCI and stores the results in correlation value memory 106, maximum value detecting section 107 notifies error correction decoding section 108 of the TFCI number corresponding to the maximum correlation value among the correlation values stored in correlation value memory 106, and error correction decoding section 108 performs an error correction decoding on the data stored in data memory 103 according to the transmission format specified based on the notified TFCI number.Type: ApplicationFiled: July 25, 2002Publication date: January 16, 2003Inventors: Kuniyuki Kajita, Maho Takita
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Publication number: 20020160733Abstract: A convergence coefficient determination section 104 compares an average value calculated by an average value calculator 103 with a preset threshold value, and determines a convergence coefficient. A gain coefficient determination section 106 determines a control gain based on the aforementioned convergence coefficient and the aforementioned average value. A gain/voltage converter 107 converts the gain coefficient to a voltage to obtain a voltage control value. A GCA 101 amplifies a received signal in accordance with the voltage control value after it has undergone digital conversion.Type: ApplicationFiled: November 26, 2001Publication date: October 31, 2002Inventor: Kuniyuki Kajita
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Publication number: 20020158780Abstract: In a puncturing section 102, input memory 201 temporarily stores data inputted to the puncturing section 102, a controller 202 distinguishes data to be added, a switch 203 selects data to be added in accordance with control of the controller 202, an adder 204 adds data (namely, data subjected to repetition by a transmitter side) selected by the switch 203, and output memory 205 temporarily stores data outputted from the puncturing section 102.Type: ApplicationFiled: October 26, 2001Publication date: October 31, 2002Inventor: Kuniyuki Kajita
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Publication number: 20020155824Abstract: A personal information control system that makes it easy to carry out a shift of personal information accompanying to a replacement of a portable telephone apparatus with a new one by carrying out control and maintenance of the personal information. The mobile station apparatus 100 comprises a user interface 110 that exchanges information with a user, a transmitting/receiving section 120 that carries out communication with a base station apparatus 200 via an antenna 150, a memory that stores personal information and its own user identification number and a control section 140 that controls the respective operations of the foregoing sections.Type: ApplicationFiled: June 6, 2002Publication date: October 24, 2002Inventor: Kuniyuki Kajita