Electronic still video camera with direct personal computer (PC) compatible digital format output

• US 5,576,757 A
• Filed: 07/29/1993
• Issued: 11/19/1996
• Est. Priority Date: 11/20/1990
• Status: Expired due to Term

• Current Assignee: St Clair Intellectual Property Consultants Incorporated
• Original Assignee: St Clair Intellectual Property Consultants Incorporated
• Inventors: Speasl, Jerry A., Roberts, Marc K., Chikosky, Matthew A.
• Primary Examiner(s): Garber, Wendy
• Assistant Examiner(s): Ho, Tuan V.
• Application Number:
  US08/098,787
• Time in Patent Office: 1,209 Days
• Field of Search: 348/207, 348/222, 348/220, 348/374, 348/375, 348/232, 348/233, 358/335, 358/310, 358/906
• US Class Current: 348/220.1
• CPC Class Codes: H04N 1/00236 using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer image input to or image output from a computer via a network H04N1/00209
• CPC Class Codes: H04N 1/00241 using an image reading device as a local input to a computer input via network, e.g. network scanners H04N1/00225
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/2137 with temporary storage before final recording, e.g. in a frame buffer
• CPC Class Codes: H04N 19/00 Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 2201/0065 Converting image data to a format usable by the connected apparatus or vice versa
• CPC Class Codes: H04N 2201/0068 Converting from still picture data
• CPC Class Codes: H04N 2201/33378 Type or format of data, e.g. colour or B/W, halftone or binary, computer image file or facsimile data
• CPC Class Codes: H04N 7/01 Conversion of standards , e.g. involving analogue television standards or digital television standards processed at pixel level
• CPC Class Codes: Y10S 358/906 Hand-held camera with recorder in a single unit

Abstract

An electronic still camera comprising a lens, shutter, and exposure control system, a focus and range control circuit, a solid state imaging device incorporating a Charge Coupled Device (CCD) through which an image is focused, a digital control unit through which timing and control of an image for electronic processing is accomplished, an Analog-to-Digital (A/D) converter circuit to convert the analog picture signals into their digital equivalents, a pixel buffer for collecting a complete row of an image'"'"'s digital equivalent, a frame buffer for collecting all rows of an image'"'"'s digital equivalent, and a selectively adjustable digital image compression and decompression algorithm that compresses the size of a digital image and selectively formats the compressed digital image to a compatible format for either the IBM Personal Computer and related architectures or the Apple Macintosh PC architecture as selected by the operator so that the digital image can be directly read into most word processing, desktop publishing, and data base software packages including means for executing the appropriate selected decompression algorithm; and a memory input/output interface that provides both temporary storage of the digital image and controls the transmission and interface with a standard Personal Computer (PC) memory storage device such as a digital diskette. The digital diskette is removably inserted into the housing of the camera prior to use in recording digital image data.

Claims

1. An electronic still image camera comprising:

an optical lens,

a shutter mechanism operably associated with said lens,

light sensing means for generating analog signals corresponding to a subject image,

means for converting said analog signals into corresponding digital data,

buffer storage means for accumulating a complete image frame of said digital data,

memory means for storing an output data file format determining code data,

output data file format determining means for retrieving said previously stored output data file format code data corresponding to one of a plurality of different input data formats for different formats for different types of information handling apparatus,

logic means responsive to said output data file format determining means for selectively arranging said digital data and said output format code data into a predetermined formatted output data file wherein said predetermined formatted output data file corresponds in file structure and arrangement to the input data file format of a predetermined type of data processing apparatus,

memory formatting control means for checking the formatted status of a removably mounted digital memory means to ensure correspondence with said stored output data file format determining code data, and

means for removably mounting said digital memory means for storing said formatted output data.

2. The electronic still camera of claim 1 wherein said logic means additionally includes means to generate a PICT graphic image data input file format.

3. The electronic still camera of claim 1 wherein said logic means additionally includes means to generate a GIF graphic image data input file format.

4. The electronic still camera of claim 1 further comprising data compression means for compressing said digital data before said digital data is formatted by selectively utilizing one of a plurality of predetermined compression algorithm parameters and additionally including means for storing in said removable digital memory means a signal to signify which of said plurality of compression algorithm parameters are associated with said compressed digital data.

5. A process for selectively formatting and storing electronic still video image signals comprising the steps of:

generating image signals corresponding to a sensed imagewise pattern of graphic information,

converting the image signals into digital data,

storing said digital data in a buffer memory to accumulate a complete frame of said image signals,

checking the formatted status of a removably mounted digital memory means to ensure formatted file compatibility with a stored output data file determining code data,

retrieving said previously stored output digital data file format determining code data from a selectively addressable memory wherein said output data file format code data determines a data file structure and arrangement corresponding to the input data file format of one of a plurality of different input data file formats for different types of information handling apparatus,

selectively configuring said digital data into a predetermined output data file format determined by said output data file format code which corresponds to the input data file format of a predetermined type of data processing apparatus, and

storing said formatted digital data corresponding to image signals in said formatted digital memory.

6. The process of claim 5 further including the steps of compressing said digital data by selectively utilizing one of a plurality of predetermined compression algorithm parameters, and

storing in said digital memory a signal corresponding to the selected compression algorithm parameters operatively associated with said compressed digital data.

7. An electronic video image signal output data format translator comprising:

means for generating image signals corresponding to electronically sensed graphic information,

means for converting said image signals into digital data,

frame buffer means for temporarily storing each complete image frame of said digital data,

memory means for storing an output data file format determining code data,

memory format control means for checking the formatted status of a digital memory means to ensure compatibility with said stored output data file format determining code data,

output data file format determining means for executing said output data file format determining code data wherein said output data file format code data corresponds to a data file structure of one of a plurality of different input data file formats for different types of information handling apparatus,

logic means responsive to said output data file format determining code data for selectively arranging said digital data into a predetermined formatted output data file which corresponds to the input file data format of a predetermined type of data processing apparatus, and

means for storing said formatted output data in a digital memory in accordance with said output data file format code data.

8. The electronic video image translator of claim 7 wherein said digital memory means comprises a magnetic disc memory means and additionally including disc initializing means for formatting said disc memory means for compatibility with said output data file format determining code data.

9. An improved electronic camera comprising:

an optical lens,

a shutter mechanism operably associated with said lens,

light sensing means for generating analog signals corresponding to a subject image,

means for converting said analog signals into corresponding digital data,

buffer storage means for accumulating a complete image frame of said digital data,

means for generating picture size data corresponding to said digital data,

memory means for storing an output data file format determining code data,

output data file format determining means for retrieving said previously stored output data file format code data corresponding to one of a plurality of different input data formats for different formats for different types of information handling apparatus,

logic means responsive to said means for generating picture size data and to said output data file format determining means for selectively arranging said picture size data with said digital data and said output format code data into a predetermined formatted output data file wherein said predetermined formatted output data file corresponds in file structure and arrangement to the input data file format of a predetermined type of data processing apparatus, and

means for removably mounting a digital memory means for storing said formatted output data.

10. The improved electronic camera of claim 9 additionally including digital memory format control means to automatically format said removably mounted digital memory means to conform to the format defined by said stored output data file format determining code data.

11. A process for selectively formatting and storing electronic video image signals comprising the steps of:

generating image signals corresponding to an imagewise pattern of graphic information,

converting the image signals into digital data,

storing said digital data in a buffer memory to accumulate a complete frame of said image signals,

determining picture size data corresponding to said image signals,

retrieving previously stored output digital data file format determining code data from a selectively addressable memory wherein said output data file format code data determines a data file structure and arrangement corresponding to the input data file format of one of a plurality of different input data file formats for different types of information handling apparatus,

combining said picture size data and said format determining code data with said digital data to generate a selectively formatted output data file structure corresponding to the input data file format of one of a plurality of different input data file formats for different types of information handling apparatus, and

storing said formatted digital data in a digital memory.

12. The improved process for selectively formatting and storing electronic video image signals of claim 11 including the additional step of automatically formatting said digital memory to conform to the format defined by said stored output digital data file format determining code data.

13. An electronic video image signal output data format translator comprising:

means for generating image signals corresponding to electronically sensed graphic information,

means for converting said image signals into digital data,

frame buffer means for temporarily storing each complete image frame of said digital data,

means for generating picture size data corresponding to said digital data,

memory means for storing an output data file format determining code data,

output data file format determining means for executing said output data file format determining code data wherein said output data file format code data corresponds to a data file structure of one of said plurality of different input data file formats for different types of information handling apparatus,

logic means responsive to said means for generating picture size data and to said output data file format determining code data for selectively combining said digital data into a predetermined formatted output data file which corresponds to the input file data format of a predetermined type of data processing apparatus, and

memory means for storing said formatted output data in accordance with said output data file format code data.

14. The electronic video image signal output data format translator of claim 13 additionally including digital memory format control means to automatically format said memory means to conform to the format defined by said output data file format determining code data.