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Class Information
Number: 360/61
Name: Dynamic magnetic information storage or retrieval > General recording or reproducing > Signal switching
Description: Subject matter including specific switching elements or techniques within the information signal circuitry.










Sub-classes under this class:

Class Number Class Name Patents
360/64 Between heads in alternate engagement with medium 359
360/63 Between plural stationary heads 211
360/62 Record-reproduce 212


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

Patent Number Title Of Patent Date Issued
4138704 Operating mechanism of tape recorder Feb. 6, 1979
4122306 Telephone answering apparatus providing selective message communication Oct. 24, 1978
4120005 Mode selecting device for tape recording and/or reproducing apparatus Oct. 10, 1978
4109115 Magnetic recording apparatus with a plurality of signal receiving devices Aug. 22, 1978
4079426 Tape speed switching multiple track tape recorder Mar. 14, 1978
4074071 Automatic telephone answering device with paired transducers Feb. 14, 1978
4062050 Magnetic card reader Dec. 6, 1977
4054926 Device for automatic program selection on prerecorded magnetic tape Oct. 18, 1977
4044387 Magnetic head switching system Aug. 23, 1977
4037258 Read/write apparatus for magnetic recorders Jul. 19, 1977
4032981 Multiple selection sound reproducing apparatus Jun. 28, 1977
4031334 Apparatus for magnetic recording and/or reproducing of signals received by one or more signal receiving devices Jun. 21, 1977
4015090 Recording and/or reproducing apparatus Mar. 29, 1977
4011586 Voice logging recorder for use with preloaded cassettes Mar. 8, 1977
4000517 Remotely controllable recorder Dec. 28, 1976
3977023 Tape recorder Aug. 24, 1976
3972071 Portable recorder control apparatus Jul. 27, 1976
3965484 Central dictation system Jun. 22, 1976
3959817 Switching circuit for connecting a magnetic head in a magnetic recording and reproducing apparatus May. 25, 1976
3956767 Signal recording and/or reproducing apparatus with phase shifting to reduce signal amplitude at overlap points May. 11, 1976
3952330 Electronic control circuit for the drive motor of a magnetic sound device Apr. 20, 1976
3947884 Tape recorder Mar. 30, 1976
3940800 Mode selecting device having a time delay between selection and establishment of an operating mode for tape recording and/or recording apparatus Feb. 24, 1976
3939492 Locking mechanism for control lever in magnetic tape recorder Feb. 17, 1976
3937902 Cartridge muting circuit Feb. 10, 1976
3935591 Audio-visual apparatus with control signal operated gating means Jan. 27, 1976

1 2 3 4 5 6 7 8










 
 
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