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US4745480A
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US
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Solid-state image pick-up device having an arrangement to avoid adverse effects on the waveform of picture elements signal by the read-out start pulse
Assignee: Hitachi Ltd
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Filing: 1986-07-16
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Granted: 1988-05-17
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Expires: 2006-07-16
Abstract
Abstract A solid-state image pick-up device is provided which will not have a waveform of the picture element signals adversely influenced by a start pulse of the read out. The device includes photoelectric converting elements arranged in a two dimensional array and a shift register for generating horizontal scan pulses in response to a start pulse and clock pulses. The scan pulses are provided to means for sequentially reading out picture element signals from the photoelectric converting elements. A clock pulse generator responsive to the start pulse is also provided which generates clock pulses to the shift register after a lapse of a predetermined period following the start pulse. The period is selected to avoid an adverse influence on the waveform of the picture element signals by the start pulse.
Inventors
- 👤 Toshiro Kinugasa
- 👤 Takuya Imaide
- 👤 Iwao Aizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:00
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/70; H04N25/76; H04N25/767
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for sequentially reading out picture element signals from said photoelectric converting elements; means for generating horizontal scan pulses in response to a start pulse of a read out; and means for controlling a phase difference between said start pulse and the first one of said horizontal scan pulses which are provided to said reading out means so as to provide said horizontal scan pulses to said read out means after a lapse of a predetermined period, said predetermined period being set so that said start pulse will not adversely influence a waveform of said picture element signals.
Claim 2
Dependent Claim
116 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for sequentially reading out picture element signals from said photoelectric converting elements; means for generating horizontal scan pulses in response to a start pulse of a read out; and means for controlling a phase difference between said start pulse and the first one of said horizontal scan pulses which are provided to said reading out means so as to provide said horizontal scan pulses to said read out means after a lapse of a predetermined period, said predetermined period being set so that said start pulse will not adversely influence a waveform of said picture element signals.
Claim 3
Dependent Claim
50 words
A solid-state image pick-up device according to claim 1, wherein said controlling means includes means for generating clock pulses in response to said start pulse, said clock pulses generating means generating said clock pulses supplied to said horizontal scan pulse generating means after said lapse from receiving said start pulse.
Claim 4
Dependent Claim
62 words
A solid-state image pick-up device according to claim 1, wherein said controlling means includes means within said horizontal scan pulse generating means for delivering said horizontal scan pulses from the (n+1)th pulse thereot to the said reading out means, and said (n+1)th pulse is delivered from said delivering means after said lapse from receiving said start pulse, where n is an integer.
Claim 5
Dependent Claim
45 words
A solid-state image pick-up device according to claim 3, wherein said horizontal scan pulse generating means includes a shift register having a number (n+N) of shift stages, the number N corresponds to a number of said picture element signals of each row of said array.
Claim 6
Dependent Claim
106 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating clock pulses in response to a start pulse, said clock pulses being generated after a lapse of a predetermined period; means for generating horizontal scan pulses in response to said start pulse and said clock pulses; and means for sequentially reading out said picture element signal from said photoelectric converting elements in response to said horizontal scan pulses, wherein said predetermined period is set so that said start pulses will not adversely influence the read out of picture element signals from said photoelectric converting elements.
Claim 7
Dependent Claim
106 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating clock pulses in response to a start pulse, said clock pulses being generated after a lapse of a predetermined period; means for generating horizontal scan pulses in response to said start pulse and said clock pulses; and means for sequentially reading out said picture element signal from said photoelectric converting elements in response to said horizontal scan pulses, wherein said predetermined period is set so that said start pulses will not adversely influence the read out of picture element signals from said photoelectric converting elements.
Claim 8
Dependent Claim
20 words
A solid-state image pick-up device according to claim 5, wherein said horizontal scan pulse generating means includes a shift register.
Claim 9
Dependent Claim
131 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating horizontal scan pulses in response to a start pulse and clock pulses, said generating means generating a number (n+N) of horizontal scan pulses, where n and N are integers, wherein the number N is equal to a number of said photoelectric converting elements at each row of said two dimensional array; and means for sequentially reading out picture element signals from said photoelectric converting elements of each row of said array in response to the latter N pulses of said horizontal scan pulses, wherein said number n is selected to delay the application of horizontal scan pulses to said reading out means for a predetermined period following said start pulse.
Claim 10
Dependent Claim
131 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating horizontal scan pulses in response to a start pulse and clock pulses, said generating means generating a number (n+N) of horizontal scan pulses, where n and N are integers, wherein the number N is equal to a number of said photoelectric converting elements at each row of said two dimensional array; and means for sequentially reading out picture element signals from said photoelectric converting elements of each row of said array in response to the latter N pulses of said horizontal scan pulses, wherein said number n is selected to delay the application of horizontal scan pulses to said reading out means for a predetermined period following said start pulse.
Claim 11
Dependent Claim
26 words
A solid-state image pick-up device according to claim 7, wherein said horizontal scanpulse generating means includes a shift resister having shift stages of the number (n+N).
Claim 12
Dependent Claim
133 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating horizontal scan pulses in response to a start pulse and clock pulses, said generating means generating a number (n+N) of horizontal scan pulses, where n and N are integers, and the number N is equal to a number of said photoelectric converting elements at each row of said two dimentional array; and means for sequentially reading out picture element signals from said photoelectric converting elements of each row of said array in response to the latter N pulses of said horizontal scan pulses, wherein the number n is selected so that said start pulse has no influence on a waveform of said picture element signal read out from said photoelectric converting elements.
Claim 13
Dependent Claim
133 words
A solid-state image pick-up device, comprising: a group of photoelectric converting elements arranged in a two dimensional array; means for generating horizontal scan pulses in response to a start pulse and clock pulses, said generating means generating a number (n+N) of horizontal scan pulses, where n and N are integers, and the number N is equal to a number of said photoelectric converting elements at each row of said two dimentional array; and means for sequentially reading out picture element signals from said photoelectric converting elements of each row of said array in response to the latter N pulses of said horizontal scan pulses, wherein the number n is selected so that said start pulse has no influence on a waveform of said picture element signal read out from said photoelectric converting elements.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |