US4652140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi alarm timepiece
Assignee: Casio Computer Co Ltd
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Filing: 1986-08-20
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Granted: 1987-03-24
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Expires: 2006-08-20
Abstract
Abstract In an analog type timepiece, no electronic display is provided, and a plurality of alarm times are presettable. These preset alarm times can be easily recognized by using a simple hand. A reference signal oscillator, wave shapers, stepping motors, counters, coincidence detector and a buzzer are provided in the timepiece, thereby sequentially quick-shifting the hand mechanism to the predetermined alarm time positions.
Inventors
- 👤 Eiji Nakazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:13
CPC Classifications
G; G04; G04G; G04G13/00; G04G13/02; G04G13/026; G04C; G04C3/00; G04C3/14; G04C3/146
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
235 words
A multi-alarm timepiece comprising: oscillating means for generating a reference signal; frequency dividing means for frequency-dividing the reference signal of the oscillating means to produce a predetermined time period signal; stepping motor means driven by the predetermined time period signal derived from said frequency dividing means; a hand mechanism, including at least an hour hand and a minute hand, and driven by said stepping motor to indicate a time; alarm setting switch means for setting an alarm time; time difference memory means for storing first time difference data between a time indicated by said hand mechanism and an alarm time, and second time difference data from the alarm time to a succeeding alarm time, by operating said alarm setting switch means; alarm time data memory means for storing third time difference data between a present time indicated by said hand mechanism and the succeeding alarm time; detecting means for detecting that said hand mechanism is driven in response to the predetermined time period signal by an amount corresponding to the third time difference data stored in said alarm time data memory means; alarm sound producing means for producing an alarm sound in response to a detection signal from said detecting means; and supply means for supplying to said alarm time data memory means the second time difference signal stored in said time difference memory means in response to the detection signal from said detecting means.
Claim 2
Dependent Claim
235 words
A multi-alarm timepiece comprising: oscillating means for generating a reference signal; frequency dividing means for frequency-dividing the reference signal of the oscillating means to produce a predetermined time period signal; stepping motor means driven by the predetermined time period signal derived from said frequency dividing means; a hand mechanism, including at least an hour hand and a minute hand, and driven by said stepping motor to indicate a time; alarm setting switch means for setting an alarm time; time difference memory means for storing first time difference data between a time indicated by said hand mechanism and an alarm time, and second time difference data from the alarm time to a succeeding alarm time, by operating said alarm setting switch means; alarm time data memory means for storing third time difference data between a present time indicated by said hand mechanism and the succeeding alarm time; detecting means for detecting that said hand mechanism is driven in response to the predetermined time period signal by an amount corresponding to the third time difference data stored in said alarm time data memory means; alarm sound producing means for producing an alarm sound in response to a detection signal from said detecting means; and supply means for supplying to said alarm time data memory means the second time difference signal stored in said time difference memory means in response to the detection signal from said detecting means.
Claim 3
Dependent Claim
69 words
A timepiece as claimed in claim 1, wherein the timepiece further comprises alarm hand means for indicating the alarm time, and that said alarm setting switch means includes first switching means for matching said alarm hand means with said hand mechanism, and second switching means for quick-shifting up to a position indicating the alarm time said alarm hand means matched with said hand mechanism by said first switching means.
Claim 4
Dependent Claim
27 words
A timepiece as claimed in claim 2, wherein said alarm hand means comprises a stepping motor other than said stepping motor means for driving said hand mechanism.
Claim 5
Dependent Claim
68 words
A timepiece as claimed in claim 1, wherein the timepiece further comprises alarm hand means for indicating the alarm time, and said alarm hand means including quick-shifting means which is quickly fed by the second time difference data between the alarm time and the succeeding alarm time in order to indicate the next alarm time, said second time difference data being output from said time difference memory means.
Claim 6
Dependent Claim
48 words
A timepiece as claimed in claim 1, wherein the timepiece further comprises alarm hand means for indicating the alarm time, ahd quick-shifting means for sequentially quick-shifting said alarm hand means to a plurality of positions indicating a plurality of alarm times by operating said alarm setting switch means.
Claim 7
Dependent Claim
39 words
A timepiece as claimed in claim 5, further comprising means for quick-shifting said alarm hand means, which has been quick-shifted to a position indicating the alarm time by said quick-shifting means, to a first position of the alarm time.
Claim 8
Dependent Claim
60 words
A timepiece as claimed in claim 1, wherein said detecting means includes: shift amount counting means for counting said predetermined time period signals; and, a coincidence detecting circuit for detecting a coincidence between a counting result of said shift amount counting means and one of said first and second time difference data stored in said alarm time data memory means.
Claim 9
Dependent Claim
16 words
A timepiece as claimed in claim 1, wherein said time difference memory means includes a RAM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-23 | 1990-09-22 | 1991-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-23 | 1994-09-22 | 1995-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-23 | 1998-09-22 | 1999-03-24 | $7700.00 | Window Closed / Lapsed |