US3656169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for writing characters
Assignee: Casio Computer Co Ltd
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Filing: 1970-05-19
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Granted: 1972-04-11
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Expires: 1990-05-19
Abstract
Abstract A recording device which is mechanically separated from a processor is manually moved on the recording medium to record the characters or indicia upon it. The recording of the characters on the recording medium while moving the recording head is accomplished by the stream of ink droplets ejected from the nozzle and control signals transmitted from the processor. The control signals from the processor to the recording head are generated in response to the displacement signals generated by a signal generating means within the recording head is manually moved.
Inventors
- 👤 Toshio Kashio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/36; B41J2/00; B41J2/005; B41J2/01; B41J3/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A method for recording characters comprising the steps of proViding a recording head including an ink emitter and a recording medium-engaging rotating member, manually moving said recording head at any speed over said recording medium with said rotating member in engagement with said recording medium to rotate said rotating member as a function of the displacement of said recording head, generating a signal representative of this displacement in response to said rotation of said rotating member, receiving from a processor of a computer the character recording signals at times depending upon said displacement signal, controlling a stream of ink emitted from said emitter in response to said received signals, thereby recording the characters upon a recording medium when said recording head is manually moved over said recording medium.
Claim 2
Independent Claim
128 words
A method for recording characters comprising the steps of proViding a recording head including an ink emitter and a recording medium-engaging rotating member, manually moving said recording head at any speed over said recording medium with said rotating member in engagement with said recording medium to rotate said rotating member as a function of the displacement of said recording head, generating a signal representative of this displacement in response to said rotation of said rotating member, receiving from a processor of a computer the character recording signals at times depending upon said displacement signal, controlling a stream of ink emitted from said emitter in response to said received signals, thereby recording the characters upon a recording medium when said recording head is manually moved over said recording medium.
Claim 3
Dependent Claim
74 words
A method according to claim 1, wherein said recording head is moved in one direction over said recording medium, said rotating member comprises a detector wheel which rotates as said recording head is moved across said recording medium and said signal representative of the displacement of said recording head is generated in response to the operation of said detection wheel, and said displacement signal is transmitted to said processor separated from said recording head.
Claim 4
Dependent Claim
41 words
A method according to claim 1, wherein at least one signal representative of the displacement of said recording head in accordance with a predetermined angle of rotation is generated, and one character is recorded in response to said one displacement signal.
Claim 5
Dependent Claim
74 words
A method according to claim 2, wherein at least one signal representative of the displacement of said recording head is generated in accordance with a predetermined angle of rotation, said method further comprising the steps of: receiving the horizontal and vertical deflection control signals for each of said characters to be recorded in response to said displacement signal, and recording each of said characters under the control of said horizontal and vertical deflection signals.
Claim 6
Dependent Claim
93 words
A manual recording device comprising: a processor of a computer, a free, unguided manual recording head separated from said processor, said recording head comprising rotatable means engageable with a recording medium for rotation in response to movement of the recording head over the recording medium for detecting the manual displacement of said recording head over the recording medium, means for generating a signal representative of said displacement, and an ink emitter which is controlled under the control of the character recording signals received from said processor at times related to said displacement signal.
Claim 7
Dependent Claim
93 words
A manual recording device comprising: a processor of a computer, a free, unguided manual recording head separated from said processor, said recording head comprising rotatable means engageable with a recording medium for rotation in response to movement of the recording head over the recording medium for detecting the manual displacement of said recording head over the recording medium, means for generating a signal representative of said displacement, and an ink emitter which is controlled under the control of the character recording signals received from said processor at times related to said displacement signal.
Claim 8
Dependent Claim
56 words
A manual recording device according to claim 5 characterized in that said displacement detecting means is at least one wheel rotatably carried by said recording head, said detecting means is associated with said signal generating means, and said signal generating means comprises a switch and an actuator for energizing said switch to generate said displacement signal.
Claim 9
Dependent Claim
89 words
A manual recording device according to claim 5, characterized in that said ink emitter comprises an ink nozzle, one acceleration electrode, a pair of horizontal deflection electrodes, and a pair of vertical deflection electrodes, said ink nozzle being supplied with ink, said acceleration electrode for accelerating the stream of ink droplets projected from said ink nozzle and said pairs of horizontal and vertical-deflection electrodes for controlling the deflection of the stream ink droplets being electrically connected to said processor so that the signals may be applied to said electrodes.
Claim 10
Dependent Claim
65 words
A manual recording device according to claim 6, characterized in that said displacement detecting means is a pair of wheels, and said actuator is carried coaxially of and between said pair of wheels, the spacing between said pair of wheels being greater than tHe width of the characters to be recorded so that said pair of wheels are prevented from treading upon the characters recorded.
Claim 11
Dependent Claim
48 words
A manual recording device according to claim 7, wherein an ink source is connected to said ink emitter through an ink supply tube, a valve coupled to said ink supply tube is disposed in said recording head, and the supply of ink is controlled by controlling said valve,
Claim 12
Dependent Claim
48 words
A manual recording device according to claim 7, wherein an ink receiver having slits formed through the periphery thereof is disposed forwardly of said ink nozzle, and the ink directed toward said ink receiver is absorbed by an absorbing member which is detachably fitted over said ink receiver.
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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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |