Digital still video camera

• US 5,859,666 A
• Filed: 06/19/1996
• Issued: 01/12/1999
• Est. Priority Date: 07/25/1995
• Status: Expired due to Term

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Manabe, Katsuhiko
• Primary Examiner(s): Garber, Wendy
• Assistant Examiner(s): Ho, Tuan V.
• Application Number:
  US08/665,901
• Time in Patent Office: 937 Days
• Field of Search: 348/231, 348/233, 348/552, 386/52, 358/909.1, 358/906
• US Class Current: 348/231.9
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/9261 involving data reduction
• CPC Class Codes: H04N 5/9267 using time division multiplex of the PCM audio and PCM video signals

Abstract

A digital still video camera including a camera processor which processes image data of a subject, a recording processor which generates recording data based on the processed image data, a recording controller which controls recording of the recording data to a recording medium, a memory which stores image data processed by the camera processor and recording data recorded in the recording medium, a control device which controls the camera processor, the recording processor, and the recording controller, and an evacuating/writing device which interrupts control by the control device and evacuates/writes the recorded recording data between the recording medium and the memory.

Claims

1. A digital video still camera comprising:

a camera processor which processes image data of a subject;

a recording processor which generates recording data based on said image data which have been processed by said camera processor;

a recording controller which controls recording of said recording data to a recording medium;

a memory which stores said image data which have been processed by said camera processor;

a control device which controls said camera processor, said recording processor, and said recording controller; and

an evacuating/writing device which interrupts said control device when an evacuate/write operation is necessary and controls said camera processor and said recording controller to perform said evacuate/write operation wherein;

said recording data which have been recorded in said recording medium are transferred to said memory,

said recording medium is erased, and

a portion of said recording data which has been transferred to said memory is transferred to said recording medium.

2. A digital still video camera according to claim 1, wherein said recording controller reads recorded recording data from said recording medium.

3. A digital still video camera according to claim 2, wherein said recording processor generates reproducing data based on recorded recording data read by said recording controller.

4. A digital still video camera according to claim 3, wherein said camera processor processes said reproducing data generated by said recording processor.

5. A digital still video camera according to claim 4, wherein said evacuating/writing device controls evacuating/writing of file managing data recorded in said recording medium.

6. A digital still video camera according to claim 5, wherein said control device controls rewriting recorded recording data to said memory after writing recording data to said memory by said evacuating/writing device.

7. A digital still video camera according to claim 5, wherein said control device controls addressing of said memory when rewriting recorded recording data to said memory.

8. A digital still video camera according to claim 5, wherein said evacuating/writing device increments addressing in every access to said memory when said recorded recording data are transferred to said memory.

9. A digital video camera according to any one of claims 1, 2, 3, 4, 5, 6, 7 and 8, wherein said evacuating/writing device controls evacuating/writing of said recorded recording data between said recording medium and said memory by direct memory accessing.

10. A digital still video camera comprising:

a camera processor which processes image data of a subject;

a recording processor which generates recording data based on said image data which has been processed by said camera processor;

a memory which stores said image data which have been processed by said camera processor;

a control device which controls said camera processor and said recording processor; and

a recording controller which controls recording of said recording data to a recording medium,

wherein

said recording controller interrupts control of said camera processor and said recording processor by said control device when an evacuate/write operation is necessary, and controls said camera processor and said recording processor to perform said evacuate/write operation wherein

said recording data which have been recorded in said recording medium are transferred to said memory,

said recording medium is erased, and

a portion of said recording data which has been transferred to said memory is transferred to said recording medium.