Portable electronic timepiece with selective display of time signal and television image

• US 4,079,413 A
• Filed: 07/28/1976
• Issued: 03/14/1978
• Est. Priority Date: 07/29/1975
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Daini Seikosha
• Original Assignee: Kabushiki Kaisha Daini Seikosha
• Inventors: Yamashita, Shiro
• Primary Examiner(s): Murray, Richard
• Application Number:
  US05/709,289
• Time in Patent Office: 594 Days
• Field of Search: 358/83, 358/93, 358/180, 358/183, 358/230, 358/240, 358/241, 358/254, 340/324 AD, 325/16
• US Class Current: 348/552
• CPC Class Codes: G04B 47/00 Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece clockwork cases for special purposes G04B37/12; clocks with magnifying glass built in the face G04B39/00; time-pieces in which parts or cases produce special effects, e.g. aesthetic effects, G04B45/00, particularly with inscriptions or pictures moved by hand G04B45/003, with specially shaped cases or parts G04B45/0069; combination of writing or drawing implements with devices for indicating time B43K29/087; combined with cameras, projectors, or photographic printing apparatus G03B29/00
• CPC Class Codes: G04G 21/04 using radio waves radio-controlled time-pieces G04R
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence

Abstract

A portable electronic timepiece comprises time keeping circuitry, television receiver circuitry and an indicator grid which can selectively visually display a time signal or a television image either wholly or partially in magnified form. Switching means is provided for selecting between display of the time signal and display of the television image and for selecting a portion of the television image to be magnified and displayed. Means is provided for indicating on the normal video picture the position of the portion selected for enlargement and display.

Claims

1. A portable electronic timepiece comprising electronic time-keeping means including means for producing reference pulses and means for counting said pulses to obtain a time signal, means for receiving a television video signal, indicating means for selectively visually displaying an image of said television video signal and said time signal and means for expanding a selected portion of said television video signal image for display by said indicating means, said indicating means including means for visually indicating the position of a portion of said television video signal image that is expanded.

2. A portable electronic timepiece according to claim 1, in which said indicating means comprises first display means for displaying all or an expanded portion of said image of said television video signal and said image of said time signal and second display means for visually indicating the position of a portion of said television video signal image that is expanded.

3. A portable electronic timepiece according to claim 2, in which said first display means comprises a grid of crossed horizontal and vertical electrodes and a layer of material disposed between said electrodes and visually activated by coincident energization of horizontal electrodes and vertical electrodes.

4. A portable electronic timepiece according to claim 2, in which said second display means comprises selectively visually activatable display elements arranged in a pattern to outline different portion of the display area of said first display means.

5. A portable electronic timepiece according to claim 1, in which said timepiece is a wrist watch and said indicating means comprises the face of said wrist watch.