US4087958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timepiece apparatus
Assignee: Citizen Watch Co Ltd
•
Filing: 1977-01-24
•
Granted: 1978-05-09
•
Expires: 1997-01-24
Abstract
Abstract A novel timepiece apparatus for transmitting segment video signals to display time information etc. on a television set is described. The timepiece apparatus includes an oscillator generating a time base signal, a frequency divider dividing the frequency of said time base signal, a time counter counting an output from said frequency divider, a decoder decoding an output from said time counter, a segment video signal generator controlled by means of said decoder, a synchronizing signal generator delivering a synchronizing signal to said segment video signal generator, a modulator receiving a segment video signal from said segment video signal generator and a synchronizing signal from said synchronizing signal generator, a carrier wave generator delivering a carrier wave to be modulated by said modulator, and a transmitter transmitting a modulated carrier wave from said modulator whereby there can be obtained precise time information etc. on television sets.
Inventors
- 👤 Heihachiro Ebihara
- 👤 Misao Uchino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:43
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0005; G04G9/0011; G04G9/0058
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
A timepiece apparatus for transmitting segment video signal comprising: (1) an oscillator generating a time base signal, (2) a frequency divider dividing the frequency of said time base signal, (3) a time counter counting an output from said frequency divider, (4) a decoder decoding an output from said time counter, (5) a segment video signal generator controlled by means of said decoder, (6) a synchronizing signal generator delivering a synchronizing signal to said segment video signal generator, (7) a modulator receiving a segment video signal from said segment video signal generator and a synchronizing signal from said synchronizing signal generator, (8) a carrier wave generator delivering a carrier wave to be modulated by said modulator, and (9) a transmitter transmitting a modulated carrier wave from said modulator.
Claim 2
Dependent Claim
127 words
A timepiece apparatus for transmitting segment video signal comprising: (1) an oscillator generating a time base signal, (2) a frequency divider dividing the frequency of said time base signal, (3) a time counter counting an output from said frequency divider, (4) a decoder decoding an output from said time counter, (5) a segment video signal generator controlled by means of said decoder, (6) a synchronizing signal generator delivering a synchronizing signal to said segment video signal generator, (7) a modulator receiving a segment video signal from said segment video signal generator and a synchronizing signal from said synchronizing signal generator, (8) a carrier wave generator delivering a carrier wave to be modulated by said modulator, and (9) a transmitter transmitting a modulated carrier wave from said modulator.
Claim 3
Dependent Claim
21 words
The timepiece apparatus as claimed in claim 1, wherein a transmitting antenna is provided at a transmission terminal of said transmitter.
Claim 4
Dependent Claim
71 words
The timepiece apparatus as claimed in claim 1, wherein said segment video signal generator is composed of a position detecting circuit receiving said synchronizing signal from said synchronizing signal generator, a wave form shaping circuit receiving a detection signal from said position detecting circuit, and a gate circuit receiving each output from said wave form shaping circuit and said decoder so as to deliver said segment video signal to said modulator.
Claim 5
Dependent Claim
29 words
The timepiece apparatus as claimed in claim 1, wherein said segment video signal generator comprises one shot multivibrators connected in cascade with the output from said synchronizing signal generator.
Claim 6
Dependent Claim
37 words
The timepiece apparatus as claimed in claim 1, wherein said segment video signal generator comprises a counter connected to said synchronizing signal generator and a read only memory connected through said voltage comparing device to said counter.
Claim 7
Dependent Claim
46 words
The timepiece apparatus as claimed in claim 3, wherein said position detector is composed of a saw tooth wave generator receiving said synchronizing signal, and a plurality of voltage comparing devices receiving the output signal from said saw tooth wave generator and having different voltage value.
Claim 8
Dependent Claim
20 words
The timepiece apparatus as claimed in claim 3, wherein said wave form shaping circuit is composed of a differentiation circuit.
Claim 9
Dependent Claim
30 words
The timepiece apparatus as claimed in claim 3, wherein said gate circuit comprises a plurality of AND gates and an OR gate receiving all the outputs from the AND gates.
Claim 10
Dependent Claim
30 words
The timepiece apparatus as claimed in claim 3, wherein said modulator comprises a video signal synthesizer synthesizing each output from said segment video signal generator and said synchronizing signal generator.
Claim 11
Dependent Claim
63 words
The timepiece apparatus as claimed in claim 1, wherein said segment video signal generator connected with said modulator delivers a mark video signal together with said segment video signal to said modulator and an externally actuated member provided at said segment video signal generator for controlling said segment video signal generator so as to determine whether or not a desired mark is displayed.
References Cited (Backward Citations)
US2188145A
Cited
US2671131A
Cited
US3681914A
Cited
US3746991A
Cited
US3811265A
Cited
US3921161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |