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Class Information
Number: 360/64
Name: Dynamic magnetic information storage or retrieval > General recording or reproducing > Signal switching > Between heads in alternate engagement with medium
Description: Subject matter wherein the switching accomplishes the selection of that transducer which is in engagement with the record carrier from a plurality of transducers which are alternately in engagement with the record carrier.

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8692702 Analog-digital converter and power saving method thereof Apr. 8, 2014
8639894 Efficient read and write operations Jan. 28, 2014
8406290 User sensitive information adaptive video transcoding framework Mar. 26, 2013
8351147 Data storage Jan. 8, 2013
8223451 Data storage apparatus and method Jul. 17, 2012
7817901 Recording and reproducing apparatus Oct. 19, 2010
7710683 Multi-arm disk drive system having interleaved read/write operations and method of controlling same May. 4, 2010
7453665 Method of adjusting magnetic head of magnetic tape recording and reproducing apparatus and magnetic tape recording and reproducing apparatus Nov. 18, 2008
7443626 Patterned disk medium for vertical magnetic recording, and magnetic disk drive with the medium Oct. 28, 2008
7436614 Data storage device and data storage device control Oct. 14, 2008
7420758 Head system, recording and reproduction system, and magnetic recording method Sep. 2, 2008
7412153 Information recording device and method, and information recording system Aug. 12, 2008
7265924 Servo writer with multiple servo write heads and a method of writing with the servo writer Sep. 4, 2007
7242547 Magnetic head device, rotary head device, magnetic tape device, magnetic disc device, and magnetic recording method Jul. 10, 2007
7239466 Magnetic head device and magnetic recording device Jul. 3, 2007
7142383 Ultra Fast Backup (UFB) track concept and method for recording same Nov. 28, 2006
7106535 Method and apparatus for maintaining consistent track pitch in helical scan recorder Sep. 12, 2006
7092187 Magnetic recording and reproducing apparatus and method and thin film magnetic head used therein Aug. 15, 2006
7042665 Apparatus and method for reproducing recorded signal May. 9, 2006
7031088 Apparatus and method for detecting an abnormality in a recorded signal Apr. 18, 2006
7023635 Recording/reproducing apparatus Apr. 4, 2006
7009794 Magnetic recording and reproducing device Mar. 7, 2006
6985323 Alternating-azimuth angle helical track format using grouped same-azimuth angle heads Jan. 10, 2006
6922298 Magnetic tape recording apparatus for recording tracks having same track pitch Jul. 26, 2005
6813109 Rotary magnetic head apparatus for performing reproduction operations using a plurality of reproduction heads without depending on the arrangement of the recording tracks Nov. 2, 2004
6747828 Apparatus and method for detecting an abnormality in a recorded signal Jun. 8, 2004
6717761 Recording/reproducing apparatus Apr. 6, 2004
6697209 Phase based time domain tracking for helical scan tape drive Feb. 24, 2004
6639747 Signal recording and reproducing method and signal recording and reproducing unit Oct. 28, 2003
6621981 Video signal recording/reproducing apparatus and reproducing apparatus Sep. 16, 2003
6618216 Digital tape drive Sep. 9, 2003
6553455 Method and apparatus for providing passed pointer detection in audio/video streams on disk media Apr. 22, 2003
6549356 Rotary drum and magnetic tape recording/reproducing apparatus using the same Apr. 15, 2003
6542322 Rotary head apparatus with high rate of data transfer Apr. 1, 2003
6523747 Apparatus for reading permanently structured magnetic records Feb. 25, 2003
6476993 Signal processing apparatus and method wherein control signals and power signals are superimposed Nov. 5, 2002
6433945 Compensating write data in transformer-coupled recording system using DC content code Aug. 13, 2002
6369966 Standby signal for audio FM demodulator Apr. 9, 2002
6356403 Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner Mar. 12, 2002
6304397 Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals Oct. 16, 2001
6304399 Automatic head switching control method and apparatus Oct. 16, 2001
6285519 Flat servo bursts for arcuate track scanner Sep. 4, 2001
6282042 Data processing apparatus and methods Aug. 28, 2001
6278569 Signal recording apparatus and method Aug. 21, 2001
6263151 Recording/reproducing apparatus and reproducing apparatus Jul. 17, 2001
6239932 Method of and arrangement for formatting a magnetizable medium May. 29, 2001
6191907 Head drum for a magnetic tape recorder Feb. 20, 2001
6175461 Rotary head block with rotary transformer having separate channels for power signal and playback signal Jan. 16, 2001
6172831 Method of recording/reproducing digital signal on magnetic recording medium through helical scanning by using read-after-write function and apparatus for carrying out the same Jan. 9, 2001
6157508 Magnetic recording/playback apparatus Dec. 5, 2000

1 2 3 4 5 6 7 8

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