US4887251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
World timepiece
Assignee: Sharp Corp
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Filing: 1988-03-18
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Granted: 1989-12-12
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Expires: 2008-03-18
Abstract
Abstract A world timepiece which gives information about time or date of areas in different time zones includes an input keyboard for inputting area code information corresdponding to an area the time or date of which is required, a code memory for storing the inputted area code information, a counter for counting and storing the time and date of the areas in different time zones, a processor for detecting the operation of a mode selection key, and a display responsive to the processor for displaying the time, the date and the area code in turn of the area corresponding to the area code information of the code memory.
Inventors
- 👤 Hiroshi Takada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:26
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0076
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
208 words
A world timepiece for generating time and date information in each of a plurality of world time zones, comprising: input means for inputting at least area code information corresponding to one of said plurality of world time zones; code memory means for storing said input area code information; means for maintaining a current time and date for each of said plurality of world time zones including means for continuously sequentially counting the time and date information for each of said plurality of world time zones; means for temporarily storing said current time and date information corresponding to the input area code information for one of said plurality of world time zones; and display means, responsive to said means for accessing, for successively displaying the current time, the current date, and the area code corresponding to the input area code, wherein a first actuation of said means for accessing displays said current time information, a second actuation of said means for accessing displays said current date information, and a third actuation of said means for accessing within a predetermined time period displays the input area code so long as said means for accessing remains actuated, said current time information again being displayed upon release of said means for accessing.
Claim 2
Dependent Claim
208 words
A world timepiece for generating time and date information in each of a plurality of world time zones, comprising: input means for inputting at least area code information corresponding to one of said plurality of world time zones; code memory means for storing said input area code information; means for maintaining a current time and date for each of said plurality of world time zones including means for continuously sequentially counting the time and date information for each of said plurality of world time zones; means for temporarily storing said current time and date information corresponding to the input area code information for one of said plurality of world time zones; and display means, responsive to said means for accessing, for successively displaying the current time, the current date, and the area code corresponding to the input area code, wherein a first actuation of said means for accessing displays said current time information, a second actuation of said means for accessing displays said current date information, and a third actuation of said means for accessing within a predetermined time period displays the input area code so long as said means for accessing remains actuated, said current time information again being displayed upon release of said means for accessing.
Claim 3
Dependent Claim
24 words
The world timepiece according to claim 1, wherein said means for accessing is an identifiable function key provided in connection with said input means.
Claim 4
Dependent Claim
16 words
The world timepiece according to claim 1, wherein said display means is a single display area.
Claim 5
Dependent Claim
21 words
The world timepiece according to claim 1, further including detection means for detecting an operation mode of said means for accessing.
Claim 6
Dependent Claim
14 words
The world timepiece according to claim 4,wherein said detection means is a flip-flop circuit.
Claim 7
Dependent Claim
32 words
The world timepiece according to claim 1, wherein said predetermined time is counted by time circuit means for counting the passing time after a most recent actuation of said means for accessing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |