 |
|
|
|
|
|
 Title: |
US3870320:
Pickup arm control for video disc player
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Torrington, Leslie Albert; Indianapolis, IN
|
| Assignee: |
RCA Corporation, New York, NY
other patents from RCA CORPORATION (466175) (approx. 7,929)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1975-03-11
/ 1974-03-25
|
| Application Number: |
US1974000454168
|
| IPC Code: |
Advanced:
G11B 3/08;
G11B 3/085;
G11B 3/095;
G11B 9/00;
G11B 19/08;
G11B 19/14;
G11B 21/00;
G11B 21/02;
H04N 5/76;
Core:
G11B 3/00;
more...
IPC-7:
G11B 3/22;
G11B 25/04;
|
| U.S. Class: |
Current:
369/221;
G9B/003.011;
G9B/003.019;
G9B/003.04;
G9B/003.045;
G9B/019.015;
G9B/019.023;
G9B/021;
Original:
274/023.A;
274/009.R;
274/009.A;
|
| Field of Search: |
274/23 R,23 A,13 R,15 R,9 R
360/072,105,107
|
| Priority Number: |
| 1974-03-25 |
US1974000454168 |
|
| Abstract: |
A transducer signal pickup assembly is positioned over a desired portion of video encoded disc medium by apparatus arranged to selectively engage different portions of a first rotating belt to effect movement of the pickup assembly toward or away from the center of the disc. Further positioning of the transducer assembly in a tracking mode for facilitating playback of the signal encoded disc is provided by engaging a second rotating belt.
|
| Attorney, Agent or Firm: |
Whitacre, Eugene M. ;
Siegel, Stephen ;
Meagher, William ;
|
| Primary / Asst. Examiners: |
Haroian, Harry N.;
|
| INPADOC Legal Status: |
None
Family Legal Status Report
|
| Family: |
Show 19 known family members
|
First Claim:
Show all 13 claims |
What is claimed is:
1. Apparatus for controlling a movable transducer assembly with respect to a disc type record medium, comprising:
- a first drive belt;
- means for driving said first belt at a first given velocity;
- a second drive belt;
- means for driving said second belt at a velocity different from said first given velocity;
- a first means arranged to selectively couple said transducer assembly to different portions of said first drive belt for providing motion to said assembly toward and away from the center of said disc; and
- a second means arranged to selectively couple said transducer assembly to portions of said second drive belt for providing motion to said transducer assembly toward the center of said disc.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 12 U.S. patent(s) that reference this one
|
