Miniaturized printer
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United States of America Patent
Stats
-
Mar 31, 1981
Grant Date -
N/A
app pub date -
Nov 6, 1978
filing date -
Nov 4, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A small-sized printer having print characters circumferentially disposed around a plurality of print rings rotating by a motor on a common shaft, includes a detector comprised of an integrated circuit board rotating on the same shaft. The rotating circuit board incorporates conductive foil contacts which are sensed during rotation by fixed brushes, thereby providing a series of pulses indicative of the rotational position of the shaft and of the print characters which are in position for printing. An auxiliary signal, generated by additional contacts on the rotating circuit board, indicate positions between the print characters on the print rings. Logic circuitry combines the actual position pulses with the auxiliary signals to output converted position pulses which are free of noise and irregularities in waveform normally associated with brush contact switches. These converted pulses provide accurate timing as is required for the print cycle. A motor stop signal is also provided.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SHINSHU SEIKI KABUSHIKI KAISHA;KABUSHIKI KAISHA SUWA SEIKOSHA
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mitsui, Yoshihiro | Shiojiri, JP | 58 | 206 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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