公开(公告)号：JPH09198797A

公开(公告)日：1997-07-31

申请号：JP2304496

申请日：1996-01-17

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU ,  YAMASHITA KEITARO

IPC: H04N5/765 ,  G11B20/10

Abstract: PROBLEM TO BE SOLVED: To record an information signal such as a television video signal so as to be able to understand its contents to some degree by utilizing efficiently a recording medium of a large capacity. SOLUTION: When the level of a video signal forming a television signal being an information signal and an acoustic signal are detected and the level of these both signals in a prescribed level or higher, the television signal is recorded in a recording medium such as a hard disk. When either one of both signals is the prescribed level or higher, it can be performed that only a video signal is recorded or only an acoustic signal is recorded. Both signal are a prescribed level or lower, since recording in a standby state is not performed, efficient utilization of a recording medium can be achieved.

公开(公告)号：JP2536496B2

公开(公告)日：1996-09-18

申请号：JP24568786

申请日：1986-10-16

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU ,  NEMOTO SHOJI

IPC: G11B5/588 ,  G11B15/467

公开(公告)号：JPH0879707A

公开(公告)日：1996-03-22

申请号：JP24064894

申请日：1994-09-08

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: H04N5/937 ,  G11B20/02 ,  H04N5/93

Abstract: PURPOSE: To provide an information signal reproducing device capable of outputting the contents of sound signals in a reverse reproduction mode by reversely reading information signals including the sound signals stored at a predetermined time interval. CONSTITUTION: At the time of the reverse reproduction mode, the sound signals which are reproducing signal processed are supplied to a sound/silence detection circuit 9, the discrimination of a sound section and a silence section is performed and a discriminated result is supplied to a system controller 10. Then, the sound signals of the sound section are written in a sound signal memory circuit 6 at the time reversely inputted from a time setting input terminal 13. Also, video signals which are reproducing signal processed are supplied to a video signal memory circuit 5 and only the sound section is written. The video signals and the sound signals written in the memory circuits 5 and 6 are read reversely stored signals, DA converted and outputted. Thus, sound output capable of understanding the contents in the reverse reproduction mode is made possible.

公开(公告)号：JPH05144191A

公开(公告)日：1993-06-11

申请号：JP33403791

申请日：1991-11-22

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: G11B20/10 ,  G11B20/12 ,  H04N5/92

Abstract: PURPOSE:To efficiently utilize a decreasing data field to record sample data less than an average sample number. CONSTITUTION:The decreasing data field (D field) to record the sample data less than an average sample number is detected by an E/D discrimination system 4 and a subdata generated from a subdata generating circuit 8 is recorded in the detected decreasing data field. Also at the time of reproduction, the subdata is taken out among the decreasing data fields detected by the E/D discrimination system 4 and the specified reproducing processing is performed for the subdata taken-out by a reproducing signal processing system 26.

公开(公告)号：JPH04353675A

公开(公告)日：1992-12-08

申请号：JP12782591

申请日：1991-05-30

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: G11B20/18

Abstract: PURPOSE:To effectively utilize the error-correcting power of reproduced data in accordance with a reproduced state. CONSTITUTION:In a digital data reproducer for reproducing digital data recorded by a magnetic tape, the reproduced state of an error flag, etc., before the error correction of digital data reproduced from the magnetic tape is detected, and, from the detected reproduced state, correction circuits 15, 16, 17, 18 are selected while the greatest number of error corrections by erasure correction is controlled so that the error correction of reproduced data is conducted.

公开(公告)号：JPH04286290A

公开(公告)日：1992-10-12

申请号：JP4969491

申请日：1991-03-14

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: G11B20/00 ,  G11B20/02 ,  H04N5/265 ,  H04N5/92

Abstract: PURPOSE:To simultaneously monitor the analog video signal of the simultaneously recorded animation and a digital still picture signal with simple constitution. CONSTITUTION:In a VTR device to reproduce a magnetic tape 1 to record an analog video signal and a digital still picture signal, to a reproducing processing circuit 57 of the digital still picture signal reproduced from the magnetic tape 1, the analog video signal reproduced from the magnetic tape 1 is converted and supplied to the digital signal, the digital still picture signal and the digital converted video signal are synthesized by the reproducing processing circuit 57 and the synthesized signal is outputted.

公开(公告)号：JPH0482052A

公开(公告)日：1992-03-16

申请号：JP19542590

申请日：1990-07-24

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: H04N5/93 ,  G11B20/00 ,  H04N9/80 ,  H04N9/802 ,  H04N9/804 ,  H04N9/808

Abstract: PURPOSE:To prevent a user from feeling incompatibility or being irritated by taking out an audio signal demodulated from an FM audio signal in the period when the equalizer characteristic is set and taking out an audio signal demodulated from a PCM audio signal after this period. CONSTITUTION:Audio signals L and R demodulated from FM audio signals SM and SS are taken out from a switch circuit 25 in the period when the equalizer characteristic of a reproducing equalizer circuit 32 is set. After this period, audio signals L and R demodulated from a PCM audio signal SA are taken out from the switch circuit 25. Consequently, audio signals L and R demodulated from FM signals SM and SS are outputted during setting of this characteristic through it takes one second or longer to set the equalizer characteristic of the reproducing equalizer circuit 32. Thus, the user is prevented from feeling incompatibility or being irritated.

公开(公告)号：JPH0287362A

公开(公告)日：1990-03-28

申请号：JP23927288

申请日：1988-09-24

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: G11B20/00 ,  G11B20/10

Abstract: PURPOSE:To appropriately read out and reproduce recorded information by supplying a data reproducing part with a readout output signal to be obtained from a signal readout part via a switching pair in accordance with the state of detecting output signal from a signal detecting part. CONSTITUTION:When a phase modulation signal is contained in the readout output signal RSa from the signal readout part 13, regenerative carriers C1 and C2 are formed based on the phase modulation signal in the readout output signal RSa and supplied to a data reproducing part (PSK sound signal reproducing part) 20, while prescribed detecting signal LP, LL and LR are obtained from the signal detecting parts (level detectors) 44-46, and the readout output signal RSa obtained from the signal readout part 13 is automatically supplied to the data reproducing part 20 via the switching parts 19 and 31. Then, when the phase modulation signal is not contained in the readout output signal RSa, the readout output signal RSa is automatically supplied to an information reproducing part (PSK demodulation part) 27 via the switching parts 19 and 31. By this method, the recorded information can appropriately be read out and reproduced.

公开(公告)号：JPH0273567A

公开(公告)日：1990-03-13

申请号：JP22628088

申请日：1988-09-09

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: H04N5/928 ,  G11B5/02 ,  G11B20/10 ,  H04N5/92

Abstract: PURPOSE:To lower the error rate of reproducing digital data by controlling so as to change the frequency characteristic of a frequency response circuit part provided for a carrier reproducing part in accordance with the running speed of a tape recording medium. CONSTITUTION:When a sound 4-phase modulation signal Pa is supplied from an equalizer 40 to a PSK demodulating part 42 and a phase demodulation is executed by using reproducing carriers C1' and C2', a carrier reproducing part 43 is controlled in accordance with a frequency characteristic control signal Qx supplied from a controller 50 so that the frequency characteristic of the built-in frequency response circuit part may change in accordance with the running speed of a magnetic tape TP and the frequency of the carriers C1' and C2' is made proper in accordance with the sound 4-phase modulation signal Pa. Thus, even if the running speed of the magnetic tape TP is different from the running speed at the time of recording, the reproducing carrier having a frequency corresponding properly to the carrier frequency of the read phase modulation signal at that time is obtained.

公开(公告)号：JPH0266775A

公开(公告)日：1990-03-06

申请号：JP21807888

申请日：1988-08-31

Applicant: SONY CORP

Inventor： MURABAYASHI NOBORU

IPC: G11B20/10

Abstract: PURPOSE:To suppress the fluctuation of an error rate by reproducing a carrier signal from a reading phase modulating PSK signal and executing the level adjustment for a reproducing carrier and a PSK signal in accordance with the recording frequency characteristic of a recording medium. CONSTITUTION:A reading phase modulating PSK signal obtained from a recording medium is inputted to a carrier reproducing part 43 and carrier signals C1' and C2' are reproduced. The reproducing carriers C1' and C2', when a magnetic tape is an oxide tape, has a level larger than the time of the metal tape and supplied to a PSK demodulating part 42. The PSK signal is supplied through an equalizer 40 to the demodulating part 42, and in phase detecting parts 68 and 69, the level adjustment for the signal is executed in accordance with the recording frequency characteristic of a recording medium. Thus, the fluctiation of the error rate in reproducing digital data is suppressed and faithful reproducing digital data are obtained.