US5448755A
Expired / Lapsed
US
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Oscillation scheme for a selective calling reception apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1992-04-17
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Granted: 1995-09-05
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Expires: 2012-04-17
Abstract
Abstract Disclosed is a selective calling reception apparatus which comprises an intermittent reception oscillator for intermittently receiving a selective calling signal from a base station and a signal processing oscillator for processing the selective calling signal, in which the oscillation of the signal processing oscillator is controlled in accordance with a timing signal generated on the basis of the oscillation output of the intermittent reception oscillator. Accordingly, when the transmission rate of a selective calling signal is made high, it will do to make only the oscillation frequency of the signal processing oscillator high and it is not necessary to make the oscillation frequency of the intermittent reception oscillator high to thereby make is not required to be made high, so that the current consumption at the stand-by time does not increase.
Inventors
- 👤 Yasunari Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:20
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04W52/0287; H04W52/029; H04W88/00; H04W88/02; H04W88/022; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
112 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) controlling intermittent reception, by the selective calling reception apparatus, of a selective calling signal transmitted from a base station in accordance with the first output signal; (d) providing a second oscillator means; (e) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with said first output signal of the first oscillator means; and (f) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 2
Independent Claim
112 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) controlling intermittent reception, by the selective calling reception apparatus, of a selective calling signal transmitted from a base station in accordance with the first output signal; (d) providing a second oscillator means; (e) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with said first output signal of the first oscillator means; and (f) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 3
Dependent Claim
16 words
A method as in claim 1, wherein the first output signal is a continuous oscillation signal.
Claim 4
Dependent Claim
26 words
A method as in claim 1, wherein the first output signal has a frequency which is independent of a transmission rate of the selective calling signal.
Claim 5
Dependent Claim
37 words
A method as in claim 1, wherein step (e) comprises: (i) generating an oscillation control signal in accordance with the first output signal; and (ii) controlling the second oscillator means in accordance with the oscillation control signal.
Claim 6
Dependent Claim
20 words
A method as in claim 4, wherein the oscillation control signal oscillates between an H level and an L level.
Claim 7
Dependent Claim
26 words
A method as in claim 1, wherein step (e) comprises controlling an oscillation timing of the second oscillation means in accordance with said first output signal.
Claim 8
Dependent Claim
26 words
A method as in claim 1, wherein an oscillation frequency of the first oscillator means is higher than an oscillation frequency of the second oscillator means.
Claim 9
Dependent Claim
32 words
A method as in claim 1, wherein a precision of an oscillation frequency of the first oscillator means is higher than a precision of an oscillation frequency of the second oscillator means.
Claim 10
Dependent Claim
75 words
A method as in claim 1, wherein: the first oscillator means has a first oscillation frequency which is adapted to control the intermittent reception of the selective calling signal and which is independent of a transmission rate of the selective calling signal; and the second oscillator means has a second oscillation frequency which is higher than the first oscillation frequency and which is varied in accordance with the transmission rate of the selective calling signal.
Claim 11
Independent Claim
132 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) generating an intermittent reception timing signal in accordance with the first output signal; (d) controlling intermittent reception of a selective calling signal by a signal processing control circuit in accordance with said intermittent reception timing signal, said selective calling signal being transmitted from a base station; (e) providing a second oscillator means; (f) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with the first output signal of the first oscillator means; and (g) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 12
Independent Claim
132 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) generating an intermittent reception timing signal in accordance with the first output signal; (d) controlling intermittent reception of a selective calling signal by a signal processing control circuit in accordance with said intermittent reception timing signal, said selective calling signal being transmitted from a base station; (e) providing a second oscillator means; (f) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with the first output signal of the first oscillator means; and (g) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 13
Independent Claim
177 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) controlling intermittent reception, by the selective calling reception apparatus, of a selective calling signal transmitted from a base station in accordance with the first output signal; (d) providing a second oscillator means; (e) generating an oscillation control signal in accordance with the first output signal, the oscillation control signal oscillating between an H level and an L level; (f) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with said first output signal of the first oscillator means by (i) controlling the second oscillator means to oscillate while the oscillation control signal is at the H level and (ii) controlling the second oscillator means not to oscillate when the oscillation control signal is at the L level; and (g) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 14
Independent Claim
177 words
A method of controlling a selective calling reception apparatus, the method comprising: (a) providing a first oscillator means; (b) employing said first oscillator means to generate a first output signal; (c) controlling intermittent reception, by the selective calling reception apparatus, of a selective calling signal transmitted from a base station in accordance with the first output signal; (d) providing a second oscillator means; (e) generating an oscillation control signal in accordance with the first output signal, the oscillation control signal oscillating between an H level and an L level; (f) controlling the second oscillator means to generate a second output signal for use in decoding the selective calling signal in accordance with said first output signal of the first oscillator means by (i) controlling the second oscillator means to oscillate while the oscillation control signal is at the H level and (ii) controlling the second oscillator means not to oscillate when the oscillation control signal is at the L level; and (g) controlling the decoding of the selective calling signal in accordance with the second output signal.
Claim 15
Independent Claim
125 words
A method of controlling a selective calling reception apparatus, the method comprising; (a) providing a first oscillator means; (b) employing the first oscillator means to generate a continuous oscillation signal having a frequency which is independent of a transmission rate of a selective calling signal output by a base station; (c) controlling intermittent reception, by the selective calling reception apparatus, of the selective calling signal transmitted from the base station in accordance with the continuous oscillation signal; (d) providing a second oscillator means; (e) controlling the second oscillator means to generate an output signal for use in decoding the selective calling signal in accordance with the continuous oscillation signal; and (f) controlling the decoding of the selective calling signal in accordance with the output signal.
Claim 16
Independent Claim
125 words
A method of controlling a selective calling reception apparatus, the method comprising; (a) providing a first oscillator means; (b) employing the first oscillator means to generate a continuous oscillation signal having a frequency which is independent of a transmission rate of a selective calling signal output by a base station; (c) controlling intermittent reception, by the selective calling reception apparatus, of the selective calling signal transmitted from the base station in accordance with the continuous oscillation signal; (d) providing a second oscillator means; (e) controlling the second oscillator means to generate an output signal for use in decoding the selective calling signal in accordance with the continuous oscillation signal; and (f) controlling the decoding of the selective calling signal in accordance with the output signal.
Claim 17
Dependent Claim
25 words
A method as in claim 12, wherein the frequency of the continuous oscillation signal is higher than an oscillation frequency of the second oscillator means.
Claim 18
Dependent Claim
31 words
A method as in claim 12, wherein a precision of the frequency of the continuous oscillation signal is higher than a precision of an oscillation frequency of the second oscillator means.
Claim 19
Dependent Claim
56 words
A method as in claim 12, wherein: the frequency is adapted to control the intermittent reception of the selective calling signal; and the second oscillator means has an oscillation frequency which is higher than the frequency of the continuous oscillation signal and which is varied in accordance with the transmission rate of the selective calling signal.
References Cited (Backward Citations)
US2300081A
Cited
US3069657A
Cited
USRE27044E
Cited
US4361896A
Cited
US4511887A
Cited
JPS6013588A
Cited
JPH025633A
Cited
JPH0323725A
Cited
JPH0362634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-09-04 | 1999-03-06 | 1999-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-04 | 2003-03-06 | 2003-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-04 | 2007-03-06 | 2007-09-05 | $7700.00 | Window Closed / Lapsed |