Patent US4644481A successfully refreshed from Google Patents.
US4644481A
Expired / Lapsed
US
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Electronic thermometer
Assignee: Sharp Corp
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Filing: 1984-07-26
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Granted: 1987-02-17
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Expires: 2004-07-26
Abstract
Abstract An electronic thermometer comprises an oscillator operatively connectable to a temperature-sensitive resistance, a counter for counting an oscillation frequency of the oscillator, a timer for timekeeping a time of counting by providing the counter, a memory responsive to the counter for storing temperature data, in such a manner that each address stores a specific data representative of the presence and the absence of the temperature increase in a divided temperature measurement interval, and a calculation circuit for calculating temperature data with the count of the counter and the specific data of the memory.
Inventors
- 👤 Yoshihiro Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:55
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/22; G01K7/24; G01K7/245; G01K1/00; G01K1/02; G01K1/028; G01K13/00; G01K13/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
188 words
An electronic thermometer comprising: oscillating means operatively connected to a temperature-sensitive resistance for producing an oscillation signal that corresponds to a resistance value for said temperature-sensitive resistance; first counter means for counting an oscillation frequency of said oscillation signal; counter-control means for controlling a temperature measurement interval, said temperature measurement interval being a time interval for operation of said first counter means; memory means responsive to said first counter means for storing temperature data, having a plurality of addresses, each address of said memory means storing a specific data related to a temperature increase in a division of said temperature measured interval, said memory means producing output signals corresponding to said specific data from an address that is accessed by a signal from said counter means; and calculation means responsive to said counter control means and said output signals from said memory means for calculating temperature data, said calculating means accumulating said output signals ouput from said memory means in accordance with the count of said first counter means, said calculation means including second counter means for producing an accumulation of said specific data from said output signals.
Claim 2
Dependent Claim
188 words
An electronic thermometer comprising: oscillating means operatively connected to a temperature-sensitive resistance for producing an oscillation signal that corresponds to a resistance value for said temperature-sensitive resistance; first counter means for counting an oscillation frequency of said oscillation signal; counter-control means for controlling a temperature measurement interval, said temperature measurement interval being a time interval for operation of said first counter means; memory means responsive to said first counter means for storing temperature data, having a plurality of addresses, each address of said memory means storing a specific data related to a temperature increase in a division of said temperature measured interval, said memory means producing output signals corresponding to said specific data from an address that is accessed by a signal from said counter means; and calculation means responsive to said counter control means and said output signals from said memory means for calculating temperature data, said calculating means accumulating said output signals ouput from said memory means in accordance with the count of said first counter means, said calculation means including second counter means for producing an accumulation of said specific data from said output signals.
Claim 3
Dependent Claim
17 words
The electronic thermometer of claim 1, further comprising a reference resistance operatively connected to said oscillating means.
Claim 4
Dependent Claim
18 words
The electronic thermometer of claim 2, wherein said reference resistance is provided for defining said temperature measurement interval.
Claim 5
Dependent Claim
20 words
The electronic thermometer of claim 3 further comprising display means for displaying said temperature data calculated by said calculation means.
Claim 6
Dependent Claim
52 words
The electronic thermometer of claim 4, wherein said calculation means comprises a temporary latching means for temporary storage of a maximum value of said accumulation of said specific data prior to displaying as said temperature data, and comparing means for comparing said maximum value stored in said latching means and said accumulation.
Claim 7
Dependent Claim
36 words
The electronic thermometer of claim 5, wherein said calculation means further comprises a preset means for loading an initial value into said second counter, said initial value corresponding to a scale boundary of said electronic thermometer.
Claim 8
Dependent Claim
19 words
The electronic thermometer of claim 1, further comprising display means for displaying temperature data calculated by said calculation means.
Claim 9
Dependent Claim
52 words
The electronic thermometer of claim 7 wherein said calculation means comprises a temporary latching means for temporary storage of a maximum value of said accumulation of said specific data prior to displaying as said temperature data; and comparing means for comparing said maximum value stored in said latching means and said accumulation.
Claim 10
Dependent Claim
36 words
The electronic thermometer of claim 8 wherein said calculation means further comprises a preset means for loading an initial value into said second counter, said initial value corresponding to a scale boundary of said electronic thermometer.
References Cited (Backward Citations)
US3834238A
Cited
US4015208A
Cited
US3996451A
Cited
US4150573A
Cited
US4176556A
Cited
US4506995A
Cited
GB2058357A
Cited
US4493565A
Cited
US4505599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |