Apparatus for still image reproduction which includes plural image busses

• US 5,307,160 A
• Filed: 09/09/1992
• Issued: 04/26/1994
• Est. Priority Date: 07/06/1989
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Enari, Masahiko
• Primary Examiner(s): Powell, Mark R.
• Application Number:
  US07/942,329
• Time in Patent Office: 594 Days
• Field of Search: 358/22, 358/75, 358/426, 358/444, 340/799
• US Class Current: 358/500
• CPC Class Codes: H04N 1/32363 at the transmitter or at the receiver

Abstract

A dual image bus image reproduction apparatus is disclosed, which comprises an image memory capable of storing at least one frame of an image signal, a reproduction processor for performing reproduction processing of the input image signal and a controller for controlling the reproduction processor for a predetermined period of time beginning with the connection of the power source to allow a predetermined signal be provided from the reproduction processor.

Claims

1. An apparatus comprising:

receiving means for receiving compressed image data;

expansion means for expanding received compressed image data;

a memory for storing the image data for one frame expanded by said expansion means;

generation means for generating predetermined display image data;

first means for connecting said memory, a first image bus, and a second image bus; and

second means for connecting said generation means, said first image bus, and said second image bus;

wherein said generation means writes the predetermined display image data in said memory through said first image bus.

2. An apparatus according to claim 1, wherein said image data comprises color image data.

3. An apparatus according to claim 1, further comprising third connection means for connecting either one of said first and second image buses to a monitor display system.

4. An apparatus according to claim 3, wherein said monitor display system includes means for combining expanded image data output through said first bus from said memory with predetermined display image data output through said second bus from said generation means.

5. An apparatus according to claim 1, further comprising timing means for timing a predetermined time period beginning with a turning on of a power source.

6. An apparatus according to claim 1, wherein said generation means comprises a register for latching the image data.

7. An apparatus comprising:

memory for storing one frame of image data received;

generation means for generating predetermined display data;

first and second image buses respectively connected to said memory and said generation means;

timer for timing a predetermined time period beginning with a turning on of a power source of said apparatus; and

means for supplying the predetermined display data generated by said generation means to a monitor through either one of said first and second image buses during the timing of the predetermined time period by said timer.

8. An apparatus according to claim 7, wherein said generation means generates monochromic display data.

9. An apparatus according to claim 7, wherein said generation means writes the predetermined display data in said memory through either one of said first and second image buses, and supplies the predetermined display data to said monitor from said memory.

10. An apparatus according to claim 7, wherein said image data comprises compressed image data and said apparatus further comprises means for expanding the compressed image data.