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US6137100A Expired / Lapsed US ⏱️ 0.0 years remaining

CMOS image sensor with different pixel sizes for different colors

Assignee: Aptina Imaging Corp
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Filing: 1998-06-08
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Granted: 2000-10-24
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Expires: 2018-06-08
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Abstract

Abstract Active pixel sensor with separated pixel areas, each sensing a different primary color, red, green or blue. Each of the colors is sensed using a different size color filter element to allow receiving an amount of light dependent on the responses of the image sensor to the specific color.

Inventors

  • 👤 Eric R. Fossum
  • 👤 Michael Kaplinsky

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 05:25
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/80; H10F39/805; H10F39/8053; H04; H04N; H04N23/00; H04N23/80; H04N23/84; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134; H10F39/10; H10F39/12; H10F39/18; H10F39/182

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 116 words
A color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element receiving light, and producing an output signal indicative of an amount of light received, and including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, and a third filter of a third specified size, representing a third primary color, wherein said third specified size is smaller than said first and second specified sizes, wherein said primary colors are blue, green and red, respectively.
Claim 2
Dependent Claim 116 words
A color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element receiving light, and producing an output signal indicative of an amount of light received, and including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, and a third filter of a third specified size, representing a third primary color, wherein said third specified size is smaller than said first and second specified sizes, wherein said primary colors are blue, green and red, respectively.
Claim 3
Dependent Claim 36 words
An assembly as in claim 1, wherein said pixel elements include a light collecting area underlying each said color filter, each light collecting area being substantially the same size as said color filter which it underlies.
Claim 4
Dependent Claim 147 words
A color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element receiving light, and producing an output signal indicative of an amount of light received, and including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, and a third filter of a third specified size, representing a third primary color, wherein said pixel elements include light collecting areas underlying said color filters, each of said light collecting areas being substantially the same size, and at least one of said light collecting areas being a different size than an overlying color filter, and said overlying color filter overlies at least two of said light collecting areas.
Claim 5
Dependent Claim 147 words
A color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element receiving light, and producing an output signal indicative of an amount of light received, and including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, and a third filter of a third specified size, representing a third primary color, wherein said pixel elements include light collecting areas underlying said color filters, each of said light collecting areas being substantially the same size, and at least one of said light collecting areas being a different size than an overlying color filter, and said overlying color filter overlies at least two of said light collecting areas.
Claim 6
Dependent Claim 19 words
An assembly as in claim 3, wherein said pixel elements include photodiode light collecting areas underlying said color filters.
Claim 7
Dependent Claim 19 words
An assembly as in claim 3, wherein said pixel elements include photogate light collecting areas underlying said color filters.
Claim 8
Dependent Claim 16 words
An assembly as in claim 3, further comprising a reverse based diode separating two adjacent pixels.
Claim 9
Dependent Claim 181 words
An active color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element having a light collecting area receiving incoming light, and producing an output signal indicative of an amount of light received, each pixel element including associated circuitry therein which processes said output signal prior to its output, said associated circuitry being formed of a logic family that is compatible with CMOS, said pixels including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, wherein said light collecting area of said first pixel element has a less efficient response to said second primary color than to said first primary color, and a third filter of a third specified size, representing a third primary color, wherein said third specified size is smaller than said first and second specified sizes, and wherein said primary colors are red, green and blue, respectively.
Claim 10
Dependent Claim 181 words
An active color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element having a light collecting area receiving incoming light, and producing an output signal indicative of an amount of light received, each pixel element including associated circuitry therein which processes said output signal prior to its output, said associated circuitry being formed of a logic family that is compatible with CMOS, said pixels including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, wherein said light collecting area of said first pixel element has a less efficient response to said second primary color than to said first primary color, and a third filter of a third specified size, representing a third primary color, wherein said third specified size is smaller than said first and second specified sizes, and wherein said primary colors are red, green and blue, respectively.
Claim 11
Dependent Claim 21 words
An assembly as in claim 11 wherein each light collecting area is substantially the same as an associated said color filter.
Claim 12
Dependent Claim 200 words
An active color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element having a light collecting area receiving incoming light, and producing and output signal indicative of an amount of light received, each pixel element including associated circuitry therein which processes said output signal prior to its output, said associated circuitry being formed of a logic family that is compatible with CMOS, said pixels including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, wherein said light collecting area of said first pixel element has a less efficient response to said second primary color than to said first primary color, and a third filter of a third specified size, representing a third primary color, wherein each of said light collecting areas is substantially the same size, and at least one of said light collecting areas being a different size than an overlying color filter and said overlying color filter overlies at least two of said light collecting areas.
Claim 13
Dependent Claim 200 words
An active color pixel assembly, comprising: a plurality of macro pixels, each macro pixel comprising: a plurality of individually-addressable pixel elements, each pixel element having a light collecting area receiving incoming light, and producing and output signal indicative of an amount of light received, each pixel element including associated circuitry therein which processes said output signal prior to its output, said associated circuitry being formed of a logic family that is compatible with CMOS, said pixels including a first pixel element with a first color filter of a specified size, representing a first primary color, a second color filter of a second specified size, smaller than said first specified size, and representing a second primary color, wherein said light collecting area of said first pixel element has a less efficient response to said second primary color than to said first primary color, and a third filter of a third specified size, representing a third primary color, wherein each of said light collecting areas is substantially the same size, and at least one of said light collecting areas being a different size than an overlying color filter and said overlying color filter overlies at least two of said light collecting areas.
Claim 14
Dependent Claim 19 words
An assembly as in claim 9, wherein said pixel elements include photodiode light collecting areas underlying said color filters.
Claim 15
Dependent Claim 19 words
An assembly as in claim 9, wherein said pixel elements include photogate light collecting areas underlying said color filters.
Claim 16
Dependent Claim 16 words
An assembly as in claim 9, further comprising a reverse biased diode separating two adjacent pixels.

References Cited (Backward Citations)

US4264921A Cited
US5055921A Cited
US5031032A Cited
US5119181A Cited
US5406066A Cited
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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) 2003-10-24 2004-04-24 2004-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-10-24 2008-04-24 2008-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-10-24 2012-04-24 2012-10-24 $7700.00 Window Closed / Lapsed

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