Head switching control apparatus for use in a video signal proce

Details Head switching control apparatus for use in a video signal proce Head switching control apparatus for use in a video signal proce

1977-02-18

1978-10-10

Konick, Bernard

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 33, G11B 1514

Patent

active

041200071

ABSTRACT:
Head switching control apparatus for use in video signal processing apparatus of the type comprised of plural rotary transducer heads which scan successive tracks across a recording medium, each track having recorded therein a composite video signal. The head switching control apparatus functions to selectively connect individual transducer heads, one at a time, to video signal receiving circuitry. This head switching control apparatus is comprised of a position pulse generator for generating position pulses representing the relative positions of the transducer heads with respect to the recording medium. A bi-state circuit is conditioned in first and second states in response to successive position pulses. Switching circuitry is coupled to the transducer heads to electrically connect individual ones of the heads to the video signal receiving circuitry. A synchronizing signal separator is coupled to the video signal receiving circuitry and separates the equalizing signals included in the vertical blanking interval from the video signal. A switch pulse generator is coupled to the synchronizing signal separator and to the bi-state circuit and is responsive to the first and second states of the bi-state circuit for generating switch pulses which are synchronized with the separated equalizing signals. Thus, head switching noise is constrained to coincide with the equalizing signal to avoid false snyc signals.

REFERENCES:
patent: 3401231 (1968-09-01), Baldwin
patent: 3580992 (1971-05-01), Eguchi
patent: 3600508 (1971-08-01), Dann
patent: 3838451 (1974-09-01), Mino
patent: 3958271 (1976-05-01), Sumiyoshi

Affiliated with

Also associated with

Rating

Head switching control apparatus for use in a video signal proce does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head switching control apparatus for use in a video signal proce, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head switching control apparatus for use in a video signal proce will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1769709