Patent US4176518A successfully refreshed from Google Patents.
US4176518A
Expired / Lapsed
US
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Electronic clock having audible time indication
Assignee: Panasonic Holdings Corp
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Filing: 1977-07-08
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Granted: 1979-12-04
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Expires: 1997-07-08
Abstract
Abstract The present invention is an electronic time indicating signal clock of a hand indication type. It has a time indicating signal generating function marking time by one or more electronic tones and a correction function in which the number of tones made for a set time may be easily corrected.
Inventors
- 👤 Hakuhei Kawakami
- 👤 Takeshi Ishihara
- 👤 Kenzo Hatada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:46
CPC Classifications
G; G04; G04G; G04G13/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
331 words
An electronic time indicating signal clock comprising: a time indicating means for indicating the time; a time measuring means connected to said time indicating means for causing said time indicating means to indicate the time; a detecting means associated with said time indicating means for detecting when said time indicating means indicates a particular periodic time for which it is desired to generate an audio time indicating signal; a pulse oscillation means for generating pulses; a pulse oscillator control means connected to said detecting means and said pulse oscillator means for causing said pulse oscillator means to repetitively generate pulses whenever said detecting means detects one of said particular periodic times until said pulse oscillator control means is reset; a time indicating signal generating means connected to said pulse oscillator means for generating a time indicating signal whenever said pulse oscillator means generates a pulse; a counting means connected to said pulse oscillator means for counting the number of pulses generated by said pulse oscillator means; a memory means for storing the number of time indicating signals desired to be produced; a comparison means connected to said counting means, said memory means and said pulse oscillator control means, for comparing the count of said counting means with the number stored in said memory means, for resetting said pulse oscillator control means when the count of said counting means equals the number stored in said memory means and for storing in said memory means the number of time indicating signals desired to be produced at the next occurring particular time period; and a correction means connected to said memory means and said pulse oscillator control means, including a correction switch for activating said pulse oscillator control means to cause said pulse oscillator means to generate pulses, for correcting the number stored in said memory means by storing a number in said memory means related to the number of pulses generated by said pulse oscillator circuit during the activation of said correction switch.
Claim 2
Dependent Claim
331 words
An electronic time indicating signal clock comprising: a time indicating means for indicating the time; a time measuring means connected to said time indicating means for causing said time indicating means to indicate the time; a detecting means associated with said time indicating means for detecting when said time indicating means indicates a particular periodic time for which it is desired to generate an audio time indicating signal; a pulse oscillation means for generating pulses; a pulse oscillator control means connected to said detecting means and said pulse oscillator means for causing said pulse oscillator means to repetitively generate pulses whenever said detecting means detects one of said particular periodic times until said pulse oscillator control means is reset; a time indicating signal generating means connected to said pulse oscillator means for generating a time indicating signal whenever said pulse oscillator means generates a pulse; a counting means connected to said pulse oscillator means for counting the number of pulses generated by said pulse oscillator means; a memory means for storing the number of time indicating signals desired to be produced; a comparison means connected to said counting means, said memory means and said pulse oscillator control means, for comparing the count of said counting means with the number stored in said memory means, for resetting said pulse oscillator control means when the count of said counting means equals the number stored in said memory means and for storing in said memory means the number of time indicating signals desired to be produced at the next occurring particular time period; and a correction means connected to said memory means and said pulse oscillator control means, including a correction switch for activating said pulse oscillator control means to cause said pulse oscillator means to generate pulses, for correcting the number stored in said memory means by storing a number in said memory means related to the number of pulses generated by said pulse oscillator circuit during the activation of said correction switch.
Claim 3
Dependent Claim
45 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said comparison means includes means to reset said counting means and means to add one to the number stored in said memory means when said comparison means resets said pulse oscillator control means.
Claim 4
Dependent Claim
33 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said correction means includes means for erasing the number stored in said memory means upon actuation of said correction control switch.
Claim 5
Dependent Claim
60 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said correction means includes means for causing said memory means to count the number of pulses generated by said pulse oscillator means under control of said correction control switch and for adding one to the number stored in said memory means when said correction control switch is deactivated.
Claim 6
Dependent Claim
40 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said time indicating signal generating means comprises an audio speaker and a reverberation effect producing means connected to said audio speaker, for generating a reverberation effect electronic sound.
Claim 7
Dependent Claim
34 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said detecting means comprises a permanent magnet which moves in response to said time measuring means and a stationary magnetically sensitive switch.
Claim 8
Dependent Claim
34 words
An electronic time indicating signal clock as claimed in claim 1, wherein: said detecting means comprises a magnetically sensitive switch which moves in response to said time measuring means and a stationary permanent magnet.
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) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |