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81. 发明专利

JPS6352594A MAGNETIC RECORDING AND REPRODUCING SYSTEM 失效
公开(公告)号：JPS6352594A
公开(公告)日：1988-03-05
申请号：JP19566886
申请日：1986-08-22
申请人： FUJI PHOTO FILM CO LTD
发明人： MATSUMOTO TAKASHI
IPC分类号： G11B5/02 , H04N9/80 , H04N9/81
摘要： PURPOSE:To record/reproduce a color difference signal and a luminance signal separately by recording a chrominance signal up to a deep layer of a magnetic recording medium, recording the luminance signal to a shallow layer and giving large and different azimuth angles to heads. CONSTITUTION:The heads 11, 12 have azimuth angles thetaC,thetaY of nearly 45 deg. in one and opposite direction to a line 4 perpendicular to a moving direction A of a floppy disk 13 with respect to the heads 11, 12. The head 11 records/ reproduces a color difference signal SC subject to line sequential processing. The head 12 records/reproduces the luminance signal SY. At first, the head 11 records the color difference signal SC onto the floppy disk 13. Then the head 12 records the luminance signal SY on the same track as that recorded with the color difference signal SC on the floppy disk. The color difference signal is recorded up to a deep layer of the floppy disk 13 and the luminance signal SY is recorded to a shallow layer.

82. 发明专利

JPS62237886A VIDEO SIGNAL PROCESSING CIRCUIT 失效
公开(公告)号：JPS62237886A
公开(公告)日：1987-10-17
申请号：JP8161986
申请日：1986-04-09
申请人： SONY CORP
发明人： HARA MASAO , FUJII NOBORU
IPC分类号： H04N9/86 , H04N9/797 , H04N9/80 , H04N9/81 , H04N9/815 , H04N11/22
摘要： PURPOSE:To contrive the miniaturization of a processing circuit, high accuracy and no adjustment by processing digitally the correlation between a present video signal and a video signal before 1H. CONSTITUTION:The two systems of video signals formed by time base expansion, e.g., digital data of R-Y and B-Y signals are fed to ROMs 73R, 73B directly or via 1H delay lines 72R,72B. When there is no correlation between the digital data fed directly or via the delay lines 72R, 72B from the ROMs 73R,73B, the same data as the digital data supplied directly is outputted. On the other hand, there is a correlation, the same digital data as that of arithmetic means of the digital data supplied directly and via the delay lines is outputted. Since the correlation is discriminated difinitely digitally by the ROMs 73R, 73B, the miniaturization, high speed and no adjustment are contrived.

83. 发明专利

JPS62234478A VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS62234478A
公开(公告)日：1987-10-14
申请号：JP7855986
申请日：1986-04-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAUCHI TATSUJI , AWAMOTO SHIGERU , CHIBA MITSUO , SASAKI KIYOSHI
IPC分类号： H04N5/783 , G11B15/18 , G11B27/30 , H04N5/7826 , H04N5/92 , H04N5/937 , H04N9/81 , H04N9/82 , H04N9/87
摘要： PURPOSE:To obtain a variable speed reproduction picture that can be discriminated even with the segment recording by converting the video signals in a single field into a recording signal of N segments to insert the segment index signals having different segment forms for each segment within the horizontal blanking period of said recording signal and controlling a memory by an index signal in a variable speed reproduction mode for synthesization of video signals. CONSTITUTION:The luminance and color signals undergone the time base compression as well as the horizontal synchronizing signal, the burst signal and the segment index signal produced by a synchronizing signal/index signal generating circuit 23 are multiplexed in time division at the next stage and are inputted to segment processing circuit 25. The circuit 25 consists of a delay circuit and a segment synchronizing signal inserting circuit together with a blanking part formed between segments respectively. The blanking synchronizing signal is inserted to the blanking part and the recording signal is outputted. In a variable speed reproduction mode an index detecting circuit 33 detects said segment index signal and outputs the segment identifying signal to a write control circuit 34. The circuit 34 controls the write of a field memory of a TBC/time base expansion/segment adverse processing circuit 35 based on the segment identifying signal, the segment position detected from the segment synchronizing signal and an address within H.

84. 发明专利

JPS62137995A VERTICAL EMPHASIS CIRCUIT FOR COLOR LINE SEQUENCE TCI SIGNAL 失效
公开(公告)号：JPS62137995A
公开(公告)日：1987-06-20
申请号：JP28000085
申请日：1985-12-12
申请人： SONY CORP
发明人： SAKAMOTO ETSURO
IPC分类号： H04N9/68 , H04N9/77 , H04N9/81 , H04N11/08 , H04N11/24
摘要： PURPOSE:To prevent S/N degradation in excessive emphasis by subjecting the luminance signal of a color line sequence TCI signal to high band emphasis in the vertical direction in every line and subjecting a line sequencitial chrominance signal to high band emphasis in the vertical direction in every period of the line sequence. CONSTITUTION:Not only a 1H delay circuit 1 but also a 2H delay circuit 4 and a switch 5 are provided, and the switch 5 is so constituted that contacts C and Y are switched in accordance with periods of signals C and Y. Then, when the color line sequence TCI signal is inputted, a signal of 1H ago is always added to the signal Y, and a signal of 2H before is always added to the signal C, that is, signals R-Y or signals B-Y are added. Therefore, excess emphasis of a vertically emphasized output signal is reduced. Thus, S/N of waveform edges and the waveform reproducibility are improved because individual sequential signals of the chrominance signal are emphasized.

85. 发明专利

JPS6292697A VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6292697A
公开(公告)日：1987-04-28
申请号：JP23363585
申请日：1985-10-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMANISHI KAZUHIRO , KOBAYASHI MASAAKI , TAKEUCHI AKIHIRO , NAGAOKA YOSHITOMI
IPC分类号： H04N9/81 , G11B5/008
摘要： PURPOSE:To eliminate a guard band and make high density recording possible by making inclined azimuth recording making correlative signals adjoin each other. CONSTITUTION:For instance, 1 frame is 525H at NTSC, and 625H at PAL and not even number, and accordingly, when signals are changed at every period L, arrangement of signals becomes different between a frame and next frame. Accordingly, arrangement of signals in each frame is made equal by initializing switching of signals for each frame or by replacing signals applied to two rotary heads. Signals P, Q are signals obtained by switching the two signals every 1H after separating video signals into luminance signals and chrominance signals, and signals P', Q' are signals obtained by delaying signals P, Q by 1.5H, and signals P', Q' are obtained by initializing switching every 1H at fourth H. By this way, correlative signals adjoin each other and accordingly, inclined azimuth recording can be made effectively, guard band can be eliminated, and high density recording can be realized.

86. 发明专利

JPS6264178A VIDEO DISC DEVICE 失效
公开(公告)号：JPS6264178A
公开(公告)日：1987-03-23
申请号：JP20339685
申请日：1985-09-17
申请人： HITACHI LTD
发明人： OKU MASUO
IPC分类号： G11B20/06 , H04N5/92 , H04N9/81 , H04N9/89
摘要： PURPOSE:To execute a synchronous separation, by frequency-multiplexing the FM signal of an video signal and the pilot signal including the information of an synchronizing signal, recording the result in a video disc, detecting the information of the time base shift, and using a pilot signal. CONSTITUTION:A reproduced signal from the video disc is inputted from a terminal F. A pilot signal eliminating circuit 17 eliminates the pilot signal from the reproduced signal, and an FM demodulator 19 reproduces the video signal. Meanwhile, as to the time-base-shift correction, the pilot-signal component only is taken out from the reproduced signal by a band-pass-filter (BPF) 26. Since the pilot signal is amplitude-modulated by a composite synchronizing signal, the composite synchronizing signal is detected by an envelope detection circuit 27 and a waveform shaping circuit 28. Using the detected composite synchronizing signal, a pilot-signal phase-detecting circuit 32 detects the phase of the pilot signal outputted from the BPF 26 to obtain the information of the time-base-shift. The said information is transmitted to a tangential actuator 34 through a loop file 33 to constitute a time-base-correction loop.

87. 发明专利

JPS6257390A VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6257390A
公开(公告)日：1987-03-13
申请号：JP19629685
申请日：1985-09-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMANISHI KAZUHIRO , KOBAYASHI MASAAKI , TAKEUCHI AKIHIRO , OCHI ATSUO , NAGAOKA YOSHITOMI
IPC分类号： H04N9/81 , G11B5/027
摘要： PURPOSE:To perform a high density recording by changing over two signals Y, C by a fixed period, specifying a head interval and a dislocation of tracks between fields and recording so as to have Y next Y and C next C. CONSTITUTION:Two signals Y, C are mutually changed over at every kH (H is a 1 horizontal period, k is an optical integer) and more than one pair of rotary heads forming a pair by two recording the obtained two signals are disposed. When tracks forming a pair by two are recorded, the rotary heads are attached with the interval S of k(2n-1)H(n) is an optional integer) left in a circumferential direction, the track of a field and the track of the next field are dislocated by k(m-0.5)H (m is an optional integer) and recorded so as to place a signal Y next to a signal Y and a signal C next to a signal C. Thereby, an inclination azimuth recording can be effectively carried out, a guard band can be eliminated and a high density recording can be performed.

88. 发明专利

JPS6257389A VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6257389A
公开(公告)日：1987-03-13
申请号：JP19629585
申请日：1985-09-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMANISHI KAZUHIRO , KOBAYASHI MASAAKI , TAKEUCHI AKIHIRO , NAGAOKA YOSHITOMI
IPC分类号： G11B20/02 , G11B5/027 , H04N9/81
摘要： PURPOSE:To attain a high density recording by changing over a signal in one track so as to situate Y next Y, and C next C and providing different azimuth angles to one another in heads for recording adjacent tracks. CONSTITUTION:A signal is changed over in 1 track so as to place Y next Y and C next C on a tape 1 and adjacent tracks are recorded by heads having different azimuth angles. Thereby, since signals having a correlation are adjacent, an inclination azimuth recording is effectively performed, the tracks are closely allowed to contact with each other, a guard band can be eliminated and a high density recording can be performed. Accordingly, if tapes of the same length and the same width are used and a recording is carried out on the same track width, the recording for a longer time can be executed and the width of the track can be enlarged and the S/N can be improved, in the same recording time.

89. 发明专利

JPS61265988A ELECTRONIC CAMERA 失效
公开(公告)号：JPS61265988A
公开(公告)日：1986-11-25
申请号：JP10875785
申请日：1985-05-20
申请人： SANYO ELECTRIC CO
发明人： MURATA HARUHIKO
IPC分类号： G11B33/06 , G11B31/00 , H04N5/335 , H04N9/04 , H04N9/81 , H04N9/86
摘要： PURPOSE:To attain the picking up and the recording of a still picture by installing a battery pack on a device main body and supplying a power source for image-picking up and recording the still picture. CONSTITUTION:The titled device is constituted with the device main body 19, the battery pack 20 which can be freely attached and detached and an animation recording pack 21. When the battery pack 20 is installed on the device main body 19, its connector 20' is connected to the lower connector 19' of the device main body 19. When the animation recoding pack 21 is fitted on the device main body 19, the connector 21' of the animation recording pack 21 is connected to the connector 19'.

90. 发明专利

JPS61263391A VIDEO SIGNAL RECORDING DEVICE 失效
公开(公告)号：JPS61263391A
公开(公告)日：1986-11-21
申请号：JP10381585
申请日：1985-05-17
申请人： CANON KK
发明人： NAGASHIMA YOSHITAKE
IPC分类号： G11B5/027 , H04N9/797 , H04N9/81 , H04N9/86
摘要： PURPOSE:To attain the recording of video signal with high resolution and excellent color reproducibility by offsetting the subcarrier frequency of the color difference signals provided adjacently to tracks by 1/2 of the horizontal scanning frequency which is adjacent with each other at every n-pieces of the adjacent recording tracks. CONSTITUTION:The inputted luminance signal Y is divided by a multiplexer 2 into signals of two channels which dot-interlace, and supplied respectively to filters 3 and 4. Unnecessary signals are removed by the filters 3 a 4 from the said signals, and they thereafter are modulated by FM modulator circuits 5 and 6 and added to adders a1 and a2. Meanwhile, color difference components B-Y and R-Y are supplied to multipliers M1 and M2, and are multiplied by f3 and f2 where ¦f2-f3¦=fH/2. The resulting signals, after being subjected to a band limitation by LPFs 7 and 8, are supplied to the adders a1 and a2 as being made not overlap in the band of the luminance signals. The color difference components and the luminance signals Y1 and Y2 are added with each other, and supplied to heads A1 and B1, and A2 and B2.

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