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 Title: |
US3864733:
CONTROL SIGNAL APPARATUS FOR VIDEO DISC PLAYER
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Boltz, Jr., Charles D.; Greenwood, IN
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| Assignee: |
RCA Corporation, New York, NY
other patents from RCA CORPORATION (466175) (approx. 7,929)
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| Published / Filed: |
1975-02-04
/ 1973-03-19
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| Application Number: |
US1973000342374
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| IPC Code: |
Advanced:
H04N 5/76;
G11B 15/18;
Core:
more...
IPC-7:
H04N 5/78;
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| U.S. Class: |
Current:
386/051;
358/908;
386/E05.001;
386/E05.068;
Original:
360/033;
178/006.6DD;
360/038;
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| Field of Search: |
178/6.6 DD,6.6 FS
340/174.1 B,174.1 H
179/100.2 MD,100.2 S
360/027,33,38
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| Priority Number: |
| 1972-04-19 |
GB1972000018041 |
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| Abstract: |
Apparatus arranged to detect the absence of periodically recurring signals such as vertical synchronizing signals in a video disc system is utilized to provide control signals for actuating control functions such as the video pick-up arm return mechanism and video and audio muting circuitry.
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| Attorney, Agent or Firm: |
Whitacre, E. M. ;
Siegel, S. ;
Meagher, W. H. ;
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| Primary / Asst. Examiners: |
Canney, Vincent P.;
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| INPADOC Legal Status: |
None
Family Legal Status Report
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| Family: |
Show 19 known family members
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First Claim:
Show all 15 claims |
What is claimed is:
1. A control system for an image reproducing system comprising:
- apparatus for providing electrical signals representative of informtion stored in a spiral pattern on a storage medium, said signals including varying image-representative components and regularly recurring synchronizing components;
- means for separating said image-representative and regularly recurring synchronizing components;
- detecting means responsive to said regularly recurring synchronizing components for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to the absence of said synchronizing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and
- control means coupled to said detecting means for inhibiting operation of said electrical signal providing apparatus in response to said second control signal and permitting operation of said electrical signal providing apparatus in response to said first control signal.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 7 U.S. patent(s) that reference this one
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