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公开(公告)号：BR9502019A
公开(公告)日：1995-12-12
申请号：BR9502019
申请日：1995-05-11
Applicant: SONY CORP
Inventor： MURABAYASHI NOBORU
IPC: G11B20/10 , G11B20/12 , G11B20/18 , G11B27/029 , G11B27/032 , G11B27/036 , G11B27/30 , G11B27/34 , G11B27/36
Abstract: Even if data is recorded on a recording medium on which another data has been recorded, no problem takes place. Data that has been recorded on a recording medium is read. A reproduction signal processing portion 26 extracts an ID signal that identifies the number of samples of the data. The extracted ID signal is supplied to a record signal processing portion 39 and a fs clock generating PLL portion. The fs clock generating PLL portion 33 generates a clock corresponding to the supplied ID signal. A sound (audio) signal is sampled corresponding to the generated clock. The sampled signal is supplied to the record signal processing portion 39 along with the ID signal supplied from the record signal processing portion 39 and the number of samples represented by the ID signal to an after-record region.
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公开(公告)号：CA1315875C
公开(公告)日：1993-04-06
申请号：CA578766
申请日：1988-09-29
Applicant: SONY CORP
Inventor： KANOTA KEIJI , MURABAYASHI NOBORU
Abstract: In an apparatus for recording data on a magnetic recording medium by means of a magnetic head, a recording current supplied to such head, for example, from a recording amplifier, is varied in accordance with the recording density of the data being recorded so as to reduce the bit error rate upon playback or reproducing of the recorded data. For each recording density, the recording current supplied to the magnetic head is a predetermined amount greater than the optimal value of the recording current at a Nyquist frequency of the digital data being recorded.
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公开(公告)号：CA1313709C
公开(公告)日：1993-02-16
申请号：CA580431
申请日：1988-10-18
Applicant: SONY CORP
Inventor： NAKANO KENJI , MURABAYASHI NOBORU
Abstract: PATENT 39-0100.2118 In an apparatus, for example, an 8-mm format VTR, for selectively reproducing video data and digital data, such as, PCM audio data, recorded on a magnetic medium with any one of a plurality of recording densities, the recording density of the digital data is detected on the basis of a characteristic of the reproduced digital data, such as, a characteristic clock frequency regenerated therefrom, and the processing to which the reproduced digital data is subjected is selected automatically in accordance with the detected recording density thereof, thereby facilitating the use of the apparatus for reproducing digital data recorded with different densities. ASIX:01 -1-
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公开(公告)号：CA2049905A1
公开(公告)日：1992-03-01
申请号：CA2049905
申请日：1991-08-26
Applicant: SONY CORP
Inventor： TAKAHASHI TAKAO , MURABAYASHI NOBORU
Abstract: A digital signal played back from a record medium (2) is supplied to a plurality of processing circuits (22, 23) which exhibit respectively different characteristics to impart different error rates to the digital signal processed by each circuit (22, 23). The processed digital signal having the most favourable error rate is detected (41, 42) and the processing circuit (22, 23) which produces that signal is selected for use with further circuitry (26, 27, 28) which recovers information from the processed digital signal.
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公开(公告)号：GB2210725B
公开(公告)日：1991-12-11
申请号：GB8823534
申请日：1988-10-06
Applicant: SONY CORP
Inventor： MURABAYASHI NOBORU , KANOTA KEIJI
IPC: G11B15/087 , G11B20/10 , H04N5/91
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Patent Agency Ranking
公开(公告)号：GB2210725A
公开(公告)日：1989-06-14
申请号：GB8823534
申请日：1988-10-06
Applicant: SONY CORP
Inventor： MURABAYASHI NOBORU , KANOTA KEIJI
IPC: G11B15/087 , G11B20/10 , H04N5/91
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17.发明专利
公开(公告)号：MY123822A
公开(公告)日：2006-06-30
申请号：MYPI9705910
申请日：1997-12-09
Applicant: SONY CORP
Inventor： TAKAHASHI TAKAO , AKIBA TOSHIYA , TOMITA MASAMI , MURABAYASHI NOBORU , SUITO TARO , OHTA MASASHI , ARAI NAOHISA
IPC: H04N5/76 , G11B20/00 , G11B20/10 , G11B20/12 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/11 , G11B27/22 , G11B27/30 , G11B27/32 , H04N5/783 , H04N5/85 , H04N9/804 , H04N9/806
Abstract: A RECORDING APPARATUS CONFIGURED TO RECEIVE ANALOG VIDEO AND AUDIO SIGNALS, DIGITIZE AND COMPRESS THE SAME, AND RECORD THE COMPRESSED AUDIO AND VIDEO SIGNALS ON A DIGITAL RECORDING MEDIUM (18) SUCH AS AN OPTICAL DISK. AS THE AUDIO AND VIDEO SIGNALS ARE RECEIVED AND RECORDED, TIME SEGMENTS OF THE AUDIO SIGNALS ARE ANALYZED FOR CERTAIN FEATURES SUCH AS WHETHER THE TIME SEGMENT CORRESPONDS TO INSTRUMENTAL MUSIC, VOCAL MUSIC OR CONVERSATIONAL SPEECH. A TABLE OF CONTENTS IS THEN GENERATED CORRESPONDING TO THE FEATURE ANALYSIS AND DIGITALLY STORED ON THE STORAGE MEDIUM. AS A RESULT, THE RECORDED AUDIO IS CHARACTERIZED OVER TIME, E.G., ON A FRAME BY FRAME BASIS. A HIGH DEGREE OF VERSATILITY IS THEREBY PROVIDED IN THE PLAYBACK PROCESS, SUCH AS THE ABILITY TO SKIP PORTIONS HAVING CERTAIN AUDIO TYPES OR TO QUICKLY SCROLL TO DESIRED PORTIONS OF THE RECORDED AUDIO PROGRAMS. REPRODUCING APPARATUSES ENABLE THE USER TO SELECTIVELY REPRODUCE SEGMENTS OF THE RECORDED AUDIO AND VIDEO.(FIGURE 1)
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公开(公告)号：CA1338062C
公开(公告)日：1996-02-13
申请号：CA612913
申请日：1989-09-25
Applicant: SONY CORP
Inventor： MURABAYASHI NOBORU
Abstract: A video tape recording and/or reproducing apparatus or VTR has a reproducing system which comprises video heads, PCM audio heads and FM audio heads, demodulating circuits associated with the video, PCM and FM heads, respectively, a switching circuit, a signal detecting circuit, and a system control circuit. The video heads, PCM heads and FM heads are adapted for reading out a video signal, a PCM audio signal, and a FM audio signal from a magnetic tape and for supplying such signals to the corresponding demodulating and signal detecting circuits. The signal detecting circuit is operable to detect which of the video, PCM and FM signals are recorded on the magnetic tape and to provide a signal indicative thereof to the system control circuit which controls the switching circuit for selectively connecting the FM and PCM audio demodulating circuits with a signal output line in response to the signal from the signal detecting circuit. Thus, the video signal and the PCM audio signal or the video signal and the FM audio signal are output to be reproduced. The VTR further includes a recording system which is adapted for recording a video signal, a PCM audio signal, and an FM audio signal in respective magnetic layers of a magnetic tape which are at different depths relative to the surface of the magnetic tape in accordance with a predetermined recording current relationship used for recording the video, FM audio and PCM audio signals so as to improve the S/N ratio of each signal when reproduced.
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公开(公告)号：CA2149503A1
公开(公告)日：1995-11-18
申请号：CA2149503
申请日：1995-05-16
Applicant: SONY CORP
Inventor： MURABAYASHI NOBORU
Abstract: To easily reproduce data even in variable speed reproduction mode as with normal reproduction mode. Data read from a magnetic tape 1 is supplied to a reproduction equalizing portion 4 through a reproducing amplifier 3. The reproduction equalizing portion 4 trims wave shape and supplies the resultant signal to a data determining comparator 5. The data determining comparator 5 digitizes the input signal. The digitized data is supplied to a reproduction clock extracting portion 7. The reproduction clock extracting portion 7 extracts a reproduction clock. The extracted clock is supplied to a reproduction data strobe portion 6. The reproduction data strobe portion 6 supplies the digitized data to an error correcting portion 8 in synchronization with the reproduction clock. The error correcting portion 8 generates an error correction flag, an interpolation flag, and so forth. A reproduction signal processing portion 10 and a memory 9 process signals and output a sound signal through a D/A converting portion 11.
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