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United States Patent | 3,761,643 |
Keeler, II | September 25, 1973 |
A cassette type video playback unit is mounted in a non-accesible case having only a signal output lead and a power cord extending from the case for transmitting the signals to the display and controlling the operation of the playback mechanism. Included in the playback unit is a control circuit and indicator for providing a visual indication when the tape unit has completed one playback cycle and for automatically stopping the unit at the end of one playback cycle. The indicating means additionally provides a visual indication of the number of completed cycles and the position of the playback tape at any given time during a playback cycle. The playback unit provides composite television signals which can be coupled directly to the antenna terminals of a conventional television receiver by means of the signal output lead, and is particularly well suited for rental use since the tape playback mechanism is inaccessible, and the operation is simplified by being solely controlled by plugging and unplugging the power cord for initiating and terminating operation.
Inventors: | Keeler, II; Miner S. (Grand Rapids, MI) |
Appl. No.: | 05/163,236 |
Filed: | July 16, 1971 |
Current U.S. Class: | 360/74.6 ; 360/137; 360/85; G9B/15.01; G9B/15.021; G9B/27.051 |
Current International Class: | G11B 15/08 (20060101); G11B 15/05 (20060101); G11B 27/34 (20060101); G11B 15/18 (20060101); G11b 015/04 (); G11b 023/04 () |
Field of Search: | 179/1.2S,1.2Z,1.2T,100.11 274/4B,4L,4D,4E,4J 242/199,200 178/6.6A |
3484548 | December 1969 | Kowal |
2543146 | February 1951 | Bace |
3647984 | March 1972 | Watanabe |
2971716 | February 1961 | Sampson |
3578338 | May 1971 | Veno |
3604624 | September 1971 | Miura |
3423038 | January 1969 | Katzef |
3608908 | September 1971 | Yamamoto |
3566132 | February 1971 | Walker |
3601557 | August 1971 | Lennox |