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111. 发明专利

DE2243151C3 未知
公开(公告)号：DE2243151C3
公开(公告)日：1979-07-26
申请号：DE2243151
申请日：1972-09-01
申请人： MESSERSCHMITT-BOELKOW-BLOHM GMBH, 8000 MUENCHEN
发明人： MEINDL, FRANZ, 8000 MUENCHEN
IPC分类号： G11B20/22 , G11B5/04

112. 发明专利

SU649025A1 MAGNETOGRAPH RECORD CHANNEL 未知
公开(公告)号：SU649025A1
公开(公告)日：1979-02-25
申请号：SU2525619
申请日：1977-09-12
申请人： SP K BYURO BIOLOG PRIBOROSTR
发明人： KUDRYASHOV VIKTOR K , KNYR VLADIMIR M
IPC分类号： G11B5/027 , G11B20/08 , G11B5/04

113. 发明专利

AU2680577A RECORDING AND REPRODUCING VIDEO SIGNALS ON A MAGNETIC TAPE MOVABLE AT DIFFERENT SPEEDS 未知
公开(公告)号：AU2680577A
公开(公告)日：1979-01-11
申请号：AU2680577
申请日：1977-07-06
申请人： SONY CORP
发明人： HARAI JUN
IPC分类号： H04N5/922 , G11B5/027 , G11B20/06 , H04N5/923 , H04N9/79 , H04N9/84 , H04N5/79 , G11B5/04 , G11B5/45 , G11B15/44

114. 发明专利

DE2725433A1 Signal recording system with supplementary control signal - combines two analogue signals to obtain space for control signal 未知
公开(公告)号：DE2725433A1
公开(公告)日：1978-12-14
申请号：DE2725433
申请日：1977-06-04
申请人： LUEBCKE BERND GUSTAV
发明人： LUEBCKE BERND GUSTAV
IPC分类号： G11B20/22 , G11B27/30 , H04H20/28 , G11B5/04 , G03B31/00 , G11B27/28
摘要： The recording system is used to record two analogue signals (A, B) and supplementary signal (C) in two recording channels e.g. along a magnetic recording tape. The two analogue signals (A, B) are combined in two separate ways e.g. by addition, and subtraction, with one of the combined signals having a restricted frequency bandwidth, to provide room for recording the supplementary signal. During playback the supplementary signal (C) is initially filtered out and the two analogue signals obtained by addition or subtraction of the two combined signals (A+B, A-B).

115. 发明专利

DE2300190B2 未知
公开(公告)号：DE2300190B2
公开(公告)日：1978-11-09
申请号：DE2300190
申请日：1973-01-03
申请人： LJUDMIRSKIJ, MARK LIPOVITSCH
发明人： LJUDMIRSKIJ, MARK LIPOVITSCH
IPC分类号： G11B5/74 , G11B27/36 , G11B5/04

116. 发明专利

DE2213075C3 未知
公开(公告)号：DE2213075C3
公开(公告)日：1978-07-20
申请号：DE2213075
申请日：1972-03-17
申请人： SIEMENS AG, 1000 BERLIN UND 8000 MUENCHEN
发明人： FEUCHT, PETER, DIPL.-ING., 1000 BERLIN
IPC分类号： G11B20/06 , H03D3/04 , G11B5/04

117. 发明专利

GB1518248A PILOT SIGNAL PROCESSING SYSTEMS FOR VIDEO RECORDING APPARATUS 未知
公开(公告)号：GB1518248A
公开(公告)日：1978-07-19
申请号：GB5197576
申请日：1976-12-13
申请人： AMPEX
IPC分类号： H04N5/95 , G11B20/02 , H04N9/793 , H04N9/89 , H04N9/896 , H04N9/898 , G11B5/04 , H04N9/02
摘要： 1518248 APC systems AMPEX CORP 13 Dec 1976 [19 March 1976] 51975/76 Heading H3A In a video recording reproducing apparatus (Fig. 1 not shown) utilizing a pilot signal included in the video signal for effecting continuous correction of errors in chrominance, time base, etc., produced by variations in the relative movement between the record medium and the transducing heads, an arrangement for processing the pilot signal so that it accurately reflects the phase and frequency distortion introduced by the record reproduce process comprises an element 66 for recovering the pilot signal from the composite video signal and introducing a phase distortion related to frequency variations of the pilot signal caused by velocity error in the transducing process and a phase shifter 148 for adjusting the phase of the pilot signal in response to an applied control voltage. The control voltage may be derived from the recovered pilot by a frequency discriminator 98 and a filter 105. A phase comparator 162 applies a further control signal to 148 for phase locking of the pilot with the colour burst of the video signal and also for phase compensation of accumulated errors in other parts of the arrangement. The apparatus preferably employs two or more switched transducing heads for processing of the video signal and the pilot processor of Fig. 2 provides a chroma amplitude correction signal at 60, a luminance correction signal at 56 and a colour sub-carrier at 58 for time base error correction of the video signal.

118. 发明专利

FR2373086A1 未知
公开(公告)号：FR2373086A1
公开(公告)日：1978-06-30
申请号：FR7736430
申请日：1977-12-02
申请人： XEROX CORP
IPC分类号： G03G19/00 , G11B5/86 , G11B20/06 , H04N1/40 , G11B5/04 , G11B27/10 , H03B3/04
摘要： Constant wavelength magnetic imaging is provided by generating a signal having a frequency proportional to the speed of a rotational recording member, multiplying that frequency up to a higher, desired recording frequency, and phase-locking the higher frequency signal to the unmultiplied lower frequency, thus synchronizing the recording frequency with the motor speed.

119. 发明专利

SU610161A1 FREQUENCY-MODULATED SIGNAL PLAYBACK APPARATUS 未知
公开(公告)号：SU610161A1
公开(公告)日：1978-06-05
申请号：SU2438866
申请日：1976-12-23
申请人： ZAOCH ELEKTROTEKH
发明人： GITLITS MAKSIM V , SKALIN YURIJ V , KARETNIKOV VIKTOR A , VODNEV VLADIMIR A
IPC分类号： G11B20/06 , G11B5/04

120. 发明专利

DE2730595A1 未知
公开(公告)号：DE2730595A1
公开(公告)日：1978-01-12
申请号：DE2730595
申请日：1977-07-06
申请人： SONY CORP
发明人： HARAI JUN
IPC分类号： H04N5/922 , G11B5/027 , G11B20/06 , H04N5/923 , H04N9/79 , H04N9/84 , H04N5/79 , G11B5/04

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