US Patent No: 5,067,035

Number of patents in Portfolio can not be more than 2000

Error prevention in a recording and reproducing device with at least one rotating head

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Abstract

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A recorder/reproducer having two capstans which engage a magnetic tape passing from a delivering coil holder to a receiving coil holder of a cartridge is disclosed. At the time of loading the tape, the capstans are shifted from a rest position along a path toward the scanner which has an upper, rotatable drum. In this working position, the capstans are in close proximity to the scanner which eliminates the great lengths of the tape which generate undesired longitudinal vibrations in the tape.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KUDELSKI S.A. FABRIQUE D'ENREGISTREURS NAGRACHESEAUX1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kudelski, Stefan Le Mont, CH 11 86
Rosselet, Ernest Assens, CH 4 48
Schlup, Jean-Claude Cugy, CH 4 51

Cited Art Landscape

Patent Info (Count) # Cites Year
 
VICTOR COMPANY OF JAPAN, LTD. (3)
4,365,277 Device for detecting the position of a tape in a magnetic tape recording and/or reproducing apparatus 9 1979
4,410,919 Tape loading apparatus in a recording and/or reproducing apparatus 23 1981
4,703,370 Helical scan type magnetic tape reproducing apparatus with variable head-drum inclination capability 18 1985
 
SHARP KABUSHIKI KAISHA (2)
4,405,958 Magnetic reproducing apparatus with magnetoresistive head 1 1982
4,594,619 Magnetic reproduce apparatus with magnetoresistive head 6 1983
 
SONY CORPORATION (2)
4,212,439 Magnetic tape recording and/or reproducing apparatus 1 1978
4,255,768 Tracking control apparatus for a rotary head, variable speed signal reproducing system 19 1979
 
U.S. PHILIPS CORPORATION (2)
4,264,937 Magnetic tape guide alignment device 18 1979
4,322,761 Tape guide in a helical scan cassette recorder 8 1980
 
ENERTEC 12 PLACE DES ETATS-UNIS 92120- MONTROUGE (FRANCE) A CORP OF FRANCE (1)
4,709,280 Apparatus for varying the path of magnetic tape passing over a rotary tape head 10 1985
 
HITACHI, LTD. (1)
4,441,133 Tape guide of magnetic recording and reproducing apparatus 19 1981
 
ROBERT BOSCH GMBH (1)
4,558,376 Method and system of reproduction of magnetically recorded video signals at speeds differing from recording speed 46 1981
 
Other [Check patent profile for assignment information] (1)
4,215,379 Cartridge magnetic recorder 4 1977

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GOOGLE INC. (26)
7,165,175 Apparatus, system and method for selectively encrypting different portions of data sent over a network 32 2000
7,043,473 Media tracking system and method 59 2001
7,150,045 Method and apparatus for protection of electronic media 28 2001
6,965,993 Process and streaming server for encrypting a data stream 34 2002
7,328,345 Method and system for end to end securing of content for video on demand 11 2003
7,594,271 Method and system for real-time tamper evidence gathering for software 1 2003
7,406,174 System and method for n-dimensional encryption 5 2003
7,007,170 System, method, and apparatus for securely providing content viewable on a secure device 23 2004
7,299,292 Process and streaming server for encrypting a data stream to a virtual smart card client system 19 2004
7,380,117 Process and streaming server for encrypting a data stream 4 2005
7,640,435 System, method, and apparatus for securely providing content viewable on a secure device 9 2005
7,356,143 System, method, and apparatus for securely providing content viewable on a secure device 12 2006
7,376,831 Selectively encrypting different portions of data sent over a network 12 2006
7,817,608 Transitioning to secure IP communications for encoding, encapsulating, and encrypting data 6 2006
8,065,733 Method for evolving detectors to detect malign behavior in an artificial immune system 1 2006
8,689,016 Tamper prevention and detection for video provided over a network to a client 0 2006
8,526,612 Selective and persistent application level encryption for video provided to a client 0 2007
8,868,464 Preventing unauthorized modification or skipping of viewing of advertisements within content 0 2008
8,055,894 Process and streaming server for encrypting a data stream with bandwidth based variation 3 2008
8,621,093 Non-blocking of head end initiated revocation and delivery of entitlements non-addressable digital media network 0 2008
8,243,924 Progressive download or streaming of digital media securely through a localized container and communication protocol proxy 4 2008
8,683,218 System and method for N-dimensional encryption 0 2008
8,532,075 Transitioning to secure IP communications for encoding, encapsulating, and encrypting data 0 2010
8,386,771 Process and streaming server for encrypting a data stream with bandwidth based variation 1 2011
8,621,631 Method for evolving detectors to detect malign behavior in an artificial immune system 0 2011
8,752,194 Progressive download or streaming of digital media securely through a localized container and communication protocol proxy 0 2012
 
VICTOR COMPANY OF JAPAN, LTD. (4)
5,742,456 Magnetic recording/reproducing apparatus with a positioning mechanism for a tape guide drum 2 1996
5,982,590 Magnetic recording/reproducing apparatus with tilting head drum for dynamic tracking 3 1997
5,949,621 Magnetic recording/reproducing apparatus having double tilting member for dynamic tracking 2 1997
5,838,520 Magnetic recording/reproducing apparatus with tilting head drum for dynamic tracking 3 1997
 
JVC KENWOOD CORPORATION (3)
5,504,642 Magnetic recording/reproducing apparatus having a locus plane of rotary heads tiltable with respect to a lower drum 7 1993
5,726,836 Magnetic recording/reproducing apparatus having double tilting arrangement for dynamic tracking 3 1995
5,675,458 Magnetic recording/reproducing apparatus with independently tiltable head drum and tape lead guide 2 1995
 
Hitachi Engineering Inc. (1)
5,315,460 Magnetic recording and reproducing apparatus including S fixed chassis for supporting a head drum and a movable chassis for mounting a tape cassette 10 1993
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,204,791 Tape loading device of a video tape recorder having a linkage driven inclined auxiliary tape guide member 2 1990
 
Other [Check patent profile for assignment information] (1)
8,891,765 Method, manufacture, and apparatus for content decryption module 0 2012