专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2578957B2 失效
公开(公告)号：JP2578957B2
公开(公告)日：1997-02-05
申请号：JP29122988
申请日：1988-11-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI , YAMAMITSU CHOJURO
IPC分类号： G11B15/467

2. 发明专利

JP2532439B2 失效
公开(公告)号：JP2532439B2
公开(公告)日：1996-09-11
申请号：JP3304587
申请日：1987-02-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： H04N9/804 , H04N9/80 , H04N9/808 , H04N11/04

3. 发明专利

JPH05205406A VIDEO SIGNAL RECORDING AND REPRODUCING SYSTEM 失效
公开(公告)号：JPH05205406A
公开(公告)日：1993-08-13
申请号：JP1164792
申请日：1992-01-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： G11B20/12 , G11B27/28
摘要： PURPOSE:To reproduce index information at the time of special reproducing like quick search. CONSTITUTION:A video sector 19 including at least video signal information and a video index signal, an audio sector 20 including audio signal information and an audio index signal, and an index sector 21 including index information form a track and are recorded on a magnetic tape 18. Thus, required various indexes are restored even at the time of special reproducing.

4. 发明专利

JPH0528034B2 失效
公开(公告)号：JPH0528034B2
公开(公告)日：1993-04-23
申请号：JP25127083
申请日：1983-12-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： H03M7/30 , B09B3/00 , B09C1/02 , B09C1/08 , C09K17/06 , C09K17/08 , G11B20/10 , H04N5/92

5. 发明专利

JPH0474301A DIGITAL MAGNETIC RECORDING/REPRODUCING METHOD 失效
公开(公告)号：JPH0474301A
公开(公告)日：1992-03-09
申请号：JP18907390
申请日：1990-07-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI , YAMAMITSU CHOJURO , NISHINO SHOICHI , OTAKA HIDEKI , SHIGESATO TATSURO
IPC分类号： G11B5/09 , G11B5/29 , G11B5/53 , G11B15/467
摘要： PURPOSE:To reduce the deterioration of a reproduced picture quality by reproducing the data (think blocks) at the same timing by adjacent magnetic heads at the time of variable speed reproduction in a multi-channel recording system. CONSTITUTION:Plural magnetic heads are placed adjacently on a rotary cylinder so that recording and reproduction are executed by winding a magnetic tape around this rotary cylinder, and digital magnetic recording and reproduction are executed so that data recorded through this magnetic head becomes the same phase relation with regard to a think block. That is, the magnetic head 1 and 2 become the same phase with regard to the think block on the magnetic tape, and the moment the magnetic head 1 traces on the tip 7 of the think block, the magnetic head 2 also traces on the tip 8 of the think block. In such a way, at the time of variable speed reproduction in multi-channel recording, such a defect as data can be reproduced only unsymmetrically between the magnetic heads is improved and deterioration of a reproduced picture quality is reduced.

6. 发明专利

JPH0467362A DIGITAL SIGNAL RECORDING DEVICE 失效
公开(公告)号：JPH0467362A
公开(公告)日：1992-03-03
申请号：JP17474890
申请日：1990-07-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IKETANI AKIRA , IDE AKIFUMI , NISHINO SHOICHI , SHIGESATO TATSURO , OTAKA HIDEKI , MATSUMI CHIYOKO
IPC分类号： G11B20/12
摘要： PURPOSE:To record a video, an audio and general data in domestic digital VTR, for example, by providing bit string insertion means inserting the bit string of the integral multiple of N bits before a burst composed by means of connecting plural recording blocks of N bits, which appear in the output of a recording processing means in order. CONSTITUTION:The recording processing means 1 executing a necessary recording processing as against a digital signal and the bit string insertion means 3 and 4 inserting the bit string of the integral multiple of the N bits before the burst composed by connecting plural recording block of N bits, which appears in the output of the recording processing means 1 are provided. Thus, a gap length becomes the integral multiple of the recording blocks and the recording of data or the bit string is just changed over by a switch 4. A difference is set to be that a certain recording block includes data or it is just the bit string as long as a tape format is viewed.

7. 发明专利

JPH0414392A VIDEO SIGNAL PROCESSING UNIT 失效
公开(公告)号：JPH0414392A
公开(公告)日：1992-01-20
申请号：JP11890690
申请日：1990-05-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OTAKA HIDEKI , YAMAMITSU CHOJURO , IDE AKIFUMI , IKETANI AKIRA , NISHINO SHOICHI , SHIGESATO TATSURO , MATSUMI CHIYOKO
IPC分类号： H04N9/45 , H04N9/64
摘要： PURPOSE:To allow the processing unit to cope with both a composite signal and a component signal with high accuracy by providing a PLL means synchronizing a sampling frequency with a horizontal synchronizing signal extracted from an input composite signal and an input component signal respectively. CONSTITUTION:When an input signal is a composite signal, an input composite signal is inputted to an A/D converter 107 and a 2-color difference signal demodulated into a base band by a color demodulator 102 is inputted to A/D converters 108, 109, where the signal is A/D-converted. Then a Y/C separator 110 separates its input signal into a luminance signal and a color difference signal by using a clock whose frequency is 14.3MHz generated by a line synchronization PLL 116. Then the luminance signal and the color difference signal are converted into the sampling clock signal whose frequency is 13.5MHz by a frequency converter 111 and the succeeding processing is implemented by using the clock whose frequency is 13.5MHz generated by a line synchronization PLL 117. When an input signal is a component signal, a conversion clock whose frequency is 13.5MHz generated by the PLL 117. Thus, the processing speed of the composite signal is improved.

8. 发明专利

JPH0411362A DIGITAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH0411362A
公开(公告)日：1992-01-16
申请号：JP11330790
申请日：1990-04-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OTAKA HIDEKI , YAMAMITSU CHOJURO , IDE AKIFUMI , IKETANI AKIRA , KATO SHIRO , NISHINO SHOICHI , SHIGESATO TATSURO , SUMINO SHINYA , MATSUMI CHIYOKO , YAMADA MASAZUMI
IPC分类号： H04N5/92 , G11B20/12
摘要： PURPOSE:To record a moving picture, a sound and moreover a still picture on the same recording medium by unrecording a sound signal when the still picture is recorded and recording the still picture on a sound track. CONSTITUTION:When a moving picture signal is inputted, a switch 101 is fixed to M-side, and the input signal is processed by a moving picture processing circuit 102. Then, a switch 106 is fixed to O-side, and the moving picture signal and the sound signal are multiplexed by a multiplexer 107, and the moving picture signal is recorded on a video track, and the sound track with the sound signal by a recording head 110. When a still picture signal is recorded, the switches 101 and 106 are fixed to their respective S-sides, and the input still picture signal is processed by a still picture processing circuit 103, and is recorded on a sound track by a recording head 110 via the multiplexer 107, a recording processing circuit 108 and a recording amplifier 109. Then, the sound signal is recorded in a multichannel form, and when the moving picture is reproduced, the sound can simultaneously be reproduced. By this method, the still picture signal is recorded in the digital recording and reproducing device.

9. 发明专利

JPH03113804A MAGNETIC RECORDING AND REPRODUCING METHOD 失效
公开(公告)号：JPH03113804A
公开(公告)日：1991-05-15
申请号：JP24953989
申请日：1989-09-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI , YAMAMITSU CHOJURO
IPC分类号： G11B5/09 , G11B5/008
摘要： PURPOSE:To allow the recording and reproducing of information on plural kinds of data rates by using a part of plural magnetic heads and displacing the head in the direction perpendicular to the tracks on a magnetic tape in the case of recording and reproducing by lowering the magnetic tape speed to a fraction of an integer. CONSTITUTION:The magnetic heads 1, 2 are so constituted as to be displaced in the direction perpendicular to the plane of rotation 3. The heads are not displaced in an arrow 5 direction in ordinary recording and reproducing. The magnetic heads 1, 2 are displaced in the direction of the arrow 5 at the time of making the recording and reproducing by lowering the magnetic tape speed. The trace positions of two pieces of the magnetic heads facing the magnetic heads 1, 2 at 180 deg. are 12 and 13 if the tape speed is set by half. The magnetic heads 12 and 13 are shifted by each one track pitch in an arrow 24 direction to trace the positions 14 and 15. The effective recording and reproducing of the information on plural kinds of the magnetic tape speeds are possible in this way.

10. 发明专利

JPS6486072A SUPERCONDUCTIVITY STEPWISE DISCRIMINATION SWITCH 失效
公开(公告)号：JPS6486072A
公开(公告)日：1989-03-30
申请号：JP24515487
申请日：1987-09-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIZUKI HIROKATSU , IDE AKIFUMI , EITO MINORU
IPC分类号： G01R19/00 , G01R19/165 , H03K17/92
摘要： PURPOSE:To discriminate the level of voltage to be measured, by providing a control current control circuit changing in a control current according to the voltage to be measured and Josephson junction switches different in the areas of the junction parts thereof along a supply current line. CONSTITUTION:The current value of a control current 14 is determined by voltage 13 to be measured and a resistor 22. Josephson junction switches ABC 15, 16, 17 have different areas and are different in the sensitivity to a magnetic field. When the control current 14 is changed by the voltage 13 to be measured, the magnetic field caused by said current is changed and, since the areas of the junction parts of the Josephson junction switches 15, 16, 17 are different, the sensitivities thereof to the magnetic field are different and ON/OFF of each of the switches is controlled by the control current value and output different by the stepwise level of the control current value is obtained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式