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公开(公告)号：CA1057669A
公开(公告)日：1979-07-03
申请号：CA257396
申请日：1976-07-20
Applicant: SONY CORP
Inventor： DOI TOSHITADA
Abstract: A sound pickup assembly comprising a parabolic reflector in the focal point of which is mounted a pickup and wherein the reverse side of the parabolic reflector is formed as a binaural sound pickup having a pair of microphones mounted on opposite sides of the curved surface generally on a horizontal plane and including a pair of dummy external ears mounted near the pair of microphones such that the pickup can be used as a highly directive pickup utilizing the single microphone and parabolic reflector and wherein the unit can also be utilized for binaural pickup by utilizing the two antennas and dummy ears mounted on the back surface of the unit.
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公开(公告)号：CA1050898A
公开(公告)日：1979-03-20
申请号：CA254077
申请日：1976-06-04
Applicant: SONY CORP
Inventor： DOI TOSHITADA , WAKABAYASHI HITOSHI
Abstract: In a stereophonic sound reproduction system in which stereophonic left and right signals are treated to have is level difference therebetween for establishing a localized sound image spaced from the midpoint between left and right loudspeakers, the level difference between such left and right signals is reduced as the frequency thereof increases for improving the localization of the sound image resulting from the application of the resulting or converted left and right signals to the left and right loudspeakers.
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公开(公告)号：CA894435A
公开(公告)日：1972-02-29
申请号：CA894435D
Applicant: SONY CORP
Inventor： AKIBA KOSUKE , DOI TOSHITADA
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公开(公告)号：DE3106855C2
公开(公告)日：2002-05-23
申请号：DE3106855
申请日：1981-02-24
Applicant: SONY CORP
Inventor： DOI TOSHITADA , ODAKA KENTAROU
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公开(公告)号：AT57037T
公开(公告)日：1990-10-15
申请号：AT83903827
申请日：1983-12-06
Applicant: SONY CORP , STUDER WILLI AG
Inventor： DOI TOSHITADA , BRANDES CLAUDIA , LAGADEC ROGER
IPC: G11B5/09
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Patent Agency Ranking
公开(公告)号：CA1252201A
公开(公告)日：1989-04-04
申请号：CA442439
申请日：1983-12-02
Applicant: SONY CORP , STUDER WILLI AG
Inventor： DOI TOSHITADA , BRANDES CLAUDIA , LAGADEC ROGER
Abstract: A method for recording of PCM signals in which the signals recorded are distributed in plural recording tracks of respective ones of more than at least one channel, characterized in that the respective words of the PCM signals of one channel are distributed by switching distributing means to said plural recording tracks in accordance with a predetermined matrix pattern, in that the plural PCM signals corresponding to the respective tracks and formed by these distributed words are supplied to plural recording heads through encoders for separate coding error correction for forming plural recording tracks on the recording medium.
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公开(公告)号：CA1209665A
公开(公告)日：1986-08-12
申请号：CA444386
申请日：1983-12-29
Applicant: SONY CORP , STUDER WILLI AG
Inventor： DOI TOSHITADA , BRANDES CLAUDIA , LAGADEC ROGER
Abstract: A method for transmission of digital signals in which N channel digital data signals (where N = K x M, N, K and M being integers) are transmitted serially characterized in that the data of K channels are arranged into one group and serial transmission of M such groups is carried out sequentially and repeatedly, a preamble of a pattern violatinq the rule of the modulation system is provided to each group, one data validity evaluation bit is added to the data for each said channel, and in that parity data axe provided to all the bits included in each said qroup.
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公开(公告)号：AU538237B2
公开(公告)日：1984-08-02
申请号：AU6306280
申请日：1980-10-08
Applicant: SONY CORP
Inventor： TANAKA MASATO , FURUKAWA SHUNSUKE , IWAMOTO IKUO , DOI TOSHITADA
Abstract: A method and appratus are provided for communicating a sequence of digital information words. The information words are separated into a sequence of odd information words and a sequence of even information words. The separated odd and even information words are time-displaced from each other by a predetermined amount. The odd information words are encoded in an error-correcting code, and the even information words are separately encoded in a similar error-correcting code. The encoded time-displaced odd and even information words are combined into a transmission block, and this transmission block is transmitted or recorded. In one embodiment, the information words are encoded by generating an error-correcting word in response to the odd information words and by generating an error-correcting word in response to the even information words. The respective error-correcting words are interleaved with the odd and even information words. To recover the original information words, the transmission block is received and the odd and even information words are decoded so as to correct errors therein. The time displacement between the decoded off and even information words are removed. If an information word contains an uncorrected error therein, a correct information word is approximated therefor by interpolating adjacent decoded odd or even information words so as to approximate a correct even or odd information word, respectively. A corrected sequence of information words formed of the decoded and approximated information words is recovered.
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公开(公告)号：CA1139860A
公开(公告)日：1983-01-18
申请号：CA346490
申请日：1980-02-26
Applicant: SONY CORP
Inventor： DOI TOSHITADA , FURUKAWA SHUNSUKE , NANBA KENJI
Abstract: In a digital signal transmission system, a predetermined number of words of digital information signals are added bit by bit in a first modulo-two adder to produce a first parity signal. The information signals and the first parity signal are delayed so as to have different delay times to each other, and the signals thus delayed are again added bit by bit in a second modulo-two adder to produce a second parity signal, which is fed back to the first modulo-two adder to thereby add it with the information signals. The predetermined number of words of information signals and the first and second parity signals are serially transmitted through a transmission line.
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