US4144580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic apparatus incorporating a power savings feature
Assignee: Canon Inc
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Filing: 1977-06-22
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Granted: 1979-03-13
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Expires: 1997-06-22
Abstract
Abstract A power control system for electronic machines is capable of realizing substantial power savings. A logic circuit is activated by electric energy produced by a mechanical-electric power converter means with the push of a key without requiring a power source such as a battery. Other elements such as power on-off switch can be also eliminated.
Inventors
- 👤 Mitsuaki Seki
- 👤 Jyuji Kishimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02; G06F15/0216; G06F1/00; G06F1/26
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
121 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus, said input means including a mechanical-electrical energy transducer; an electrical energy storage means coupled to said input means; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage is disconnected; and display means coupled to said logic circuit for selectively displaying numerals, letter symbols and the like, said display means including at least one persistent display material operative to hold a display content when said storage means is disconnected.
Claim 2
Dependent Claim
121 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus, said input means including a mechanical-electrical energy transducer; an electrical energy storage means coupled to said input means; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage is disconnected; and display means coupled to said logic circuit for selectively displaying numerals, letter symbols and the like, said display means including at least one persistent display material operative to hold a display content when said storage means is disconnected.
Claim 3
Dependent Claim
15 words
Electronic apparatus according to clain 1 wherein said electrical energy storage means includes a battery.
Claim 4
Dependent Claim
15 words
Electronic apparatus according to clain 1 wherein said electrical energy storage means includes a battery.
Claim 5
Dependent Claim
13 words
Electronic apparatus according to claim 1 wherein said storage means includes a capacitor.
Claim 6
Dependent Claim
13 words
Electronic apparatus according to claim 1 wherein said apparatus includes a desk-top calculator.
Claim 7
Dependent Claim
32 words
Electronic apparatus according to claim 1 wherein said information input means includes a clear key, and wherein said storage means is connected to said logic circuit upon depression of said clear key.
Claim 8
Dependent Claim
99 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus, said input means including a mechanical-electrical energy transducer; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage means is disconnected; and printing means coupled to said logic circuit for selectively printing numerals, letter symbols and the like.
Claim 9
Dependent Claim
99 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus, said input means including a mechanical-electrical energy transducer; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage means is disconnected; and printing means coupled to said logic circuit for selectively printing numerals, letter symbols and the like.
Claim 10
Dependent Claim
15 words
Electronic apparatus according to claim 6 wherein said electrical energy storage means includes a battery.
Claim 11
Dependent Claim
15 words
Electronic apparatus according to claim 6 wherein said electrical energy storage means includes a capacitor.
Claim 12
Dependent Claim
13 words
Electronic apparatus according to claim 6 wherein said apparatus includes a desk-top calculator.
Claim 13
Dependent Claim
32 words
Electronic apparatus according to claim 6 wherein said information input means includes a clear key, and wherein said storage means is connected to said logic circuit upon depression of said clear key.
Claim 14
Dependent Claim
96 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instruction, comprising: information input means for entering signals into said apparatus; a nonelectrical-electrical energy transducer apparatus; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage means is disconnected; and output means coupled to said logic circuit for selectively outputting numerals, letter symbols and the like.
Claim 15
Dependent Claim
96 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instruction, comprising: information input means for entering signals into said apparatus; a nonelectrical-electrical energy transducer apparatus; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals, said logic circuit including at least one persistent logic element operative to hold a memory content when said storage means is disconnected; and output means coupled to said logic circuit for selectively outputting numerals, letter symbols and the like.
Claim 16
Dependent Claim
15 words
Electronic apparatus according to claim 11 wherein said electrical energy storage means includes a battery.
Claim 17
Dependent Claim
15 words
Electronic apparatus according to claim 11 wherein said electrical energy storage means includes a capacitor.
Claim 18
Dependent Claim
13 words
Electronic apparatus according to claim 11 wherein said apparatus includes a desk-top calculator.
Claim 19
Dependent Claim
32 words
Electronic apparatus according to claim 11 wherein said information input means includes a clear key, and wherein said storage means is connected to said logic circuit upon depression of said clear key.
Claim 20
Dependent Claim
96 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus; a nonelectrical-electrical energy transducer apparatus; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals; and display means coupled to said logic circuit for selectively displaying numerals, letter symbols and the like, said display means including at least one persistent display material operative to hold a display content when said storage means is disconnected.
Claim 21
Dependent Claim
96 words
Electronic apparatus of the type which performs arithmetic operations in response to entered instructions, comprising: information input means for entering signals into said apparatus; a nonelectrical-electrical energy transducer apparatus; an electrical energy storage means coupled to said transducer; a logic circuit coupled to said storage means for carrying out arithmetic operations in response to the information signals; and display means coupled to said logic circuit for selectively displaying numerals, letter symbols and the like, said display means including at least one persistent display material operative to hold a display content when said storage means is disconnected.
Claim 22
Dependent Claim
15 words
Electronic apparatus according to claim 16, wherein said electrical energy storage means includes a battery.
Claim 23
Dependent Claim
15 words
Electronic apparatus according to claim 16 wherein said electrical energy storage means includes a capacitor.
Claim 24
Dependent Claim
13 words
Electronic apparatus according to claim 16 wherein said apparatus includes a desk-top calculator.
Claim 25
Dependent Claim
31 words
Electronic apparatus according to claim 16 wherein said information input means includes a clear key, and said storage means is connected to said logic circuit upon depression of said clear key.
Claim 26
Dependent Claim
106 words
An electronic apparatus comprising: a mechanical-electrical converter for converting mechanical energy into electrical energy; energy storing means coupled to said converter for storing the electrical energy generated from said converter; regulating means coupled to said energy storing means for regulating the electrical energy stored in said energy storing means to maintain a constant potential; a low power dissipation logic circuit coupled to said regulating means for performing arithmetic operations in response to an instruction signal; and a low power dissipation display coupled to said logic circuit for selectively displaying numerals, characters, symbol marks and the like in response to an output signal from said logic circuit.
Claim 27
Dependent Claim
106 words
An electronic apparatus comprising: a mechanical-electrical converter for converting mechanical energy into electrical energy; energy storing means coupled to said converter for storing the electrical energy generated from said converter; regulating means coupled to said energy storing means for regulating the electrical energy stored in said energy storing means to maintain a constant potential; a low power dissipation logic circuit coupled to said regulating means for performing arithmetic operations in response to an instruction signal; and a low power dissipation display coupled to said logic circuit for selectively displaying numerals, characters, symbol marks and the like in response to an output signal from said logic circuit.
Claim 28
Dependent Claim
40 words
An electronic apparatus according to claim 21 wherein said converter includes a keyboard having a plurality of keys, the depression of any one of which generates electrical energy, wherein the generated electrical energy is stored in said energy storing means.
Claim 29
Dependent Claim
18 words
An electronic apparatus according to claim 21 wherein said low power dissipation logic circuit includes a persistent semiconductor.
Claim 30
Dependent Claim
18 words
An electronic apparatus according to claim 21 wherein said low power dissipation display includes a persistent display material.
References Cited (Backward Citations)
US3769621A
Cited
US3464531A
Cited
US3668698A
Cited
US3740744A
Cited
US3912368A
Cited
US4047012A
Cited
US3892958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |