SCANNING CIRCUIT STRUCTURE

US 20080030799A1
Filed: 03/30/2007
Published: 02/07/2008
Est. Priority Date: 06/27/2002
Status: Active Grant

First Claim

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1-10. -10. (canceled)

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Abstract

A scanning circuit having rearranged circuit modules at each end of a flat cable. After the rearrangement, the flat cable carries scanning control signals produced by a conventional IC communication interface instead of timing signals and carries digital image data instead of easily distorted and interfered analog image signals.

Citations

30 Claims

1-10. -10. (canceled)

11. An optical scanning apparatus, comprising:
- communication means for receiving scan control signals; and
  
  means for converting the scan control signals to timing control signals for extracting an analog image signal.
- View Dependent Claims (12, 13, 14, 15, 16)
- - 12. The apparatus of claim 11, further comprising:
    - means for receiving a scanning instruction from a communication interface; and
      
      means for converting the scanning instruction into the scan control signals.
  - 13. The apparatus of claim 11, further comprising:
    - means for extracting the analog image signal; and
      
      means for converting the analog image signal into a digital image data wherein the digital image data is transmitted via the communication means.
  - 14. The apparatus of claim 12 wherein the scan control signals are converted into timing control signals in an optical sensor circuit module and the scanning instructions are converted into scan control signals in a main circuit module.
  - 15. The apparatus of claim 13 wherein the scan control signals are transmitted to the optical sensor circuit module and the digital image data is transmitted to the main circuit module.
  - 16. The apparatus of claim 13, further comprising:
    - means for generating the analog image signal at an optical sensor circuit module;
      
      means for preprocessing the analog image signal at an optical sensor circuit module;
      
      means for converting the pre-processed analog image signal into the digital image data at the optical sensor circuit module; and
      
      means for generating the timing control signals that control a generation of the analog image signal and a conversion of the analog image signal into the digital image data at the optical sensor circuit module.

17. An apparatus, comprising:
- a main circuit module;
  
  a connection cable; and
  
  an optical sensor circuit module connected to the main circuit module through the connection cable wherein the optical sensor circuit module is configured to;
  
  receive scan control signals from the main circuit module; and
  
  convert the scan control signals to timing control signals for extracting an analog image signal.
- View Dependent Claims (18, 19, 20, 21, 22)
- - 18. The apparatus of claim 17, wherein the main circuit module is configured to:
    - receive a scanning instruction;
      
      convert the scanning instruction into scan control signals; and
      
      transmit the scan control signals through the connection cable.
  - 19. The apparatus of claim 17 wherein the optical sensor circuit module is further configured to:
    - extract an analog image signal captured in a document scanning operation from a document; and
      
      convert the analog image signal into a digital image data wherein the digital image data is transmitted through the connection cable.
  - 20. The apparatus of claim 18 wherein the main circuit module comprises:
    - a main control logic unit configured to convert the scanning instruction into scan control signals; and
      
      memory control logic unit coupled to the main control logic unit and configured to transfer digital image data to a memory unit.
  - 21. The apparatus of claim 20 wherein the main control logic unit comprises an image preprocessor capable of compensating and adjusting the digital image data.
  - 22. The apparatus of claim 19 wherein the optical sensor circuit comprises:
    - an optical sensor configured to generate the analog image signal;
      
      an analog front-end processor coupled to the optical sensor and configured to pre-process the analog image signal;
      
      an analog/digital converter coupled to the analog front-end processor and configured to convert the pre-processed analog image signal into the digital image data; and
      
      a timing generator couples to the optical sensor and the analog/digital converter, the timing generator configured to generate the timing control signals that control a generation of the analog image signal and a conversion of the analog image signal into the digital image data.

23. A computer-readable medium having instructions stored thereon, wherein when the instructions are executed by at least one device, they are operable to:
- receive scan control signals;
  
  convert the scan control signals to timing control signals; and
  
  extract an analog image signal using the timing control signals.
- View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
- - 24. The computer readable medium of claim 23, wherein the instructions are further operable to:
    - receive a scanning instruction from a communication interface; and
      
      convert the scanning instruction into scan control signals.
  - 25. The computer readable medium of claim 24, wherein the scan control signals are converted into timing control signals in an optical sensor circuit module and the scanning instructions are converted into scan control signals in a main circuit module.
  - 26. The computer readable medium of claim 25 wherein the scan control signals are transmitted to the optical sensor circuit module and the digital image data is transmitted to the main circuit module.
  - 27. The computer readable medium of claim 23, wherein the instructions are further operable to:
    - extract the analog image signal;
      
      convert the analog image signal into a digital image data; and
      
      transmit the digital image data via the communication cable.
  - 28. The computer readable medium of claim 27, wherein the instructions are further operable to:
    - pre-process the analog image signal; and
      
      convert the pre-processed analog image signal into the digital image data prior to the transmission of the digital image data via the communication cable.
  - 29. The computer readable medium of claim 27, wherein the instructions are further operable to generate timing control signals that control a generation of the analog image signal and the conversion of the analog image signal into the digital image data.
  - 30. The computer readable medium of claim 27, wherein the instructions are further operable to generate the analog image signal;
    - pre-process the analog image signal;
      
      convert the pre-processed analog image signal into the digital image data; and
      
      generate the timing control signals that control a generation of the analog image signal and a conversion of the analog image signal into the digital image data.

Specification

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Current Assignee
Intellectual Ventures I LLC (Intellectual Ventures LLC)
Original Assignee
Intellectual Ventures I LLC (Intellectual Ventures LLC)
Inventors
Lee, Chen-Ho, Lee, Kuan-Yu

Granted Patent

US 8,300,285 B2
Time in Patent Office

Days
Field of Search
US Class Current

358/474
CPC Class Codes

H04N 1/32561   using a programmed control ...

H04N 1/32571   Details of system components

H04N 1/32587   Controller

H04N 2201/0081   Image reader H04N2201/0091 ...

SCANNING CIRCUIT STRUCTURE

First Claim

6 Assignments

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Abstract

Citations

30 Claims

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SCANNING CIRCUIT STRUCTURE

First Claim

6 Assignments

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0 Petitions

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Accused Products

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Abstract

Citations

30 Claims

Specification

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Solutions

Use Cases

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