US4544283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alarm timepiece with facilities of providing precausionary alarm
Assignee: Sharp Corp
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Filing: 1980-07-24
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Granted: 1985-10-01
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Expires: 2000-07-24
Abstract
Abstract An alarm timepiece is capable of providing an alarm sound twice, one time well before the announcement time and the other at sharply the alarm announcement time. The alarm time-piece includes a first register for storing preset points in time in which to actuate the main alarm; a second register for storing a given length of preparatory time a decision circuit for determining when provide a precautionary alarm as well as the subject alarm time through calculation on said preset points in time, updated time of day and the preparatory period. The calculation is executed through the use of an adder/subtractor and comparator.
Inventors
- 👤 Yasuhiro Nakanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:04
CPC Classifications
G; G04; G04G; G04G13/00; G04G13/02; G04G13/021; G04G13/023; G04G13/026
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
An electronic appointment calendar comprising: time and date timekeeping means for producing a timekeeping signal representative of actual time; schedule time and message register means for storing a schedule time and its associated alphanumeric message, said schedule time and message register means producing a schedule time signal; detector means for comparing said schedule time signal with said timekeeping signal and producing a first coincidence signal upon the coincidence thereof; advance time announcement register means for storing an advance notice elapsed time period and for producing an elapsed time period signal; calculator means for calculating an advance advising time from said elapsed time period signal and said schedule time signal and producing a signal representative thereof; said detector means further comparing said advance advising time signal with said timekeeping signal and producing a second coincidence signal upon the coincidence thereof; means for displaying said schedule time and its associated message in response to the generation of at least one of said first and second coincidence signals by said detector means; and alarm means for generating a first alarm in response to generation of said first coincidence signal and a second alarm in response to generation of said second coincidence signal.
Claim 2
Dependent Claim
199 words
An electronic appointment calendar comprising: time and date timekeeping means for producing a timekeeping signal representative of actual time; schedule time and message register means for storing a schedule time and its associated alphanumeric message, said schedule time and message register means producing a schedule time signal; detector means for comparing said schedule time signal with said timekeeping signal and producing a first coincidence signal upon the coincidence thereof; advance time announcement register means for storing an advance notice elapsed time period and for producing an elapsed time period signal; calculator means for calculating an advance advising time from said elapsed time period signal and said schedule time signal and producing a signal representative thereof; said detector means further comparing said advance advising time signal with said timekeeping signal and producing a second coincidence signal upon the coincidence thereof; means for displaying said schedule time and its associated message in response to the generation of at least one of said first and second coincidence signals by said detector means; and alarm means for generating a first alarm in response to generation of said first coincidence signal and a second alarm in response to generation of said second coincidence signal.
Claim 3
Dependent Claim
12 words
The calender of claim 1 wherein said calculator means is an adder/subtractor.
Claim 4
Dependent Claim
16 words
The calendar of claim 1 wherein said first alarm is audibly different from said second alarm.
Claim 5
Dependent Claim
21 words
The calendar of claim 3 wherein the audible difference between said first and second alarms is in tone, volume or melody.
Claim 6
Dependent Claim
27 words
The calendar of claim 4 further comprising alphanumeric keyboard means for entering said schecule time and its associated alphanumeric message and said advance notice elapsed time period.
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) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |