Moving image reproducing apparatus

• US 7,245,818 B2
• Filed: 03/12/2001
• Issued: 07/17/2007
• Est. Priority Date: 03/13/2000
• Status: Expired due to Term

• Current Assignee: Xacti Corporation (Office Support KK)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Kaku, Junya
• Primary Examiner(s): Chevalier; Robert
• Application Number:
  US09/803,012
• Publication Number:
  US 20010028781A1
• Time in Patent Office: 2,318 Days
• Field of Search: 386/46, 386/124, 386/125, 386/107, 386/117, 386/1, 386/4, 386/40, 386/64, 386/74
• US Class Current: 386/248
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8047 using transform coding

Abstract

A moving image reproducing apparatus includes a CPU mounted with a real-time OS. When a set key is pressed, the CPU executes concurrently a transfer process of compressed image data and sound data from a magneto-optical disk to an SDRAM and a reproduce process of compressed image data and sound data stored in the SDRAM. Herein, the reproduce process includes a process of setting a command of transferring the compressed image data and sound data to an instruction list and a process of outputting the compressed image data and sound data stored in the SDRAM. Meanwhile, the transfer process includes a process of seeking a desired address on the magneto-optical disk by making reference to the instruction list and a process of writing desired data to a desired address in the SDRAM by making reference to the instruct on list.

Claims

1. A moving image reproducing apparatus which produces moving image content from a recording medium, comprising:

an internal memory for temporarily storing the moving image content; and

a processor for carrying out in parallel a plurality of tasks under a control of a multi-task OS, wherein the plurality of tasks carried out by said processor includes a transfer task to transfer a partial amount per time of the moving image content from said recording medium to said internal memory and a reproduce task to reproduce the moving image content stored in said internal memory, wherein

said reproduce task includes a set process to set a plurality of operation commands to a table and an output process to read out and output the moving image content stored in said internal memory, and said transfer task includes a seek process to seek a desired address on said recording medium in reference to the table and a content transfer process to transfer the moving image content corresponding to the partial amount from said recording medium to said internal memory in reference to the table.

2. A moving image reproducing apparatus according to claim 1, wherein said reproduce task further includes a comparison process to compare the number of unexecuted operation commands already set in the table but not yet executed with a threshold value and a wait process to wait for a predetermined time when the number of the unexecuted operation commands is greater than the threshold value.

3. A moving image reproducing apparatus according to claim 2, wherein the threshold value relies on a frame rate of the moving image content.

4. A moving image reproducing apparatus according to claim 1, wherein the set process includes an update process to cyclically update a transfer destination address of the moving image content and an address set process to set the transfer destination address updated by the update process to the table.

5. A moving image reproducing apparatus according to claim 1, wherein the moving image content includes a plurality of compressed still images, and the output process includes a decompress process to decompress each of the plurality of compressed still images.