Radio receiver with tape deck having interrupt capability

Details Radio receiver with tape deck having interrupt capability Radio receiver with tape deck having interrupt capability

1992-07-27

1994-06-14

Pascal, Robert J.

Dynamic information storage or retrieval

Combined independent audio systems

Radio

369 10, 369 2, 351 86, 360137, H04B 120

Patent

active

053216717

ABSTRACT:
Occurrence of mechanical noise and tape damage due to operation of a pinch roller is avoided when the system is switched from the tape playback mode to the radio mode or vice versa. On playback of the tape, an interrupt signal 33 from a microcomputer 34 is low. Transistors 28 and 13 are thus turned on. A drive motor 14 in the tape deck 11 is energized by power from a (+B) terminal 45. When the cassette tape is loaded into the tape deck, a plunger 15 is energized directly by power from a (TAPE+B) terminal 12. Thus, a pinch roller 41 in a head drive mechanism 16 is brought into contact with the tape 43. If the microcomputer 34 detects any interrupt signal such as traffic or emergency information signals multiplexed with FM broadcasting waves, it changes the interrupt signal to high so that the transistors 28 and 13 are turned off. Therefore, the drive motor 14 is de-energized, but the power continues to be supplied to the plunger 15. Consequently, the pinch roller 41 and the tape 43 will be maintained in contact with each other and will not influenced by the switching between the tape and radio modes.

REFERENCES:
patent: 5073943 (1991-12-01), Chapman
R. Laugisch; Zwei Empfanger in einem Gerat--das neue Grundig Cassetten-Autoradio WKC 2960 VD Infomat; 1985, Issue 2/3, pp. 99-108.

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