Title:
HIGH EFFICIENCY ENCODER
Document Type and Number:
Japanese Patent JP3208601
Kind Code:
B2
Abstract:
PURPOSE: To obtain a code amount controller capable of holding a transmission rate and sufficiently utilizing a buffer memory by cutting off a code which does not affect so much upon a reproduced image when the number of generated codes exceeds the prescribed number of codes.
CONSTITUTION: A formed variable length code word is stored in a buffer memory I22 and the address of code word stored in the buffer memory I and its code word length are recorded in an address memory 20. When the number of codes stored in the buffer memory I22 exceeds the prescribed number of codes, the memory 20 is referred to and a code word arranged just before an EQB code in the block is deleted. Thereby overflow from the regulated number of codes in the memory I22 can be prevented. Since the deleted code is the code just before the EQB code generated in the block, the deleted code word is considered as a high frequency component in the data to be recorded and the deletion of the code word does not exert visually important influence upon a reproduced image.
Inventors:
Tomohiro Ueda
Shun Ito
Yoshinori Asamura
Shun Ito
Yoshinori Asamura
Application Number:
JP16759292A
Publication Date:
September 17, 2001
Filing Date:
June 25, 1992
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04N5/92; H04N11/04; H04N19/00; H04N19/102; H04N19/134; H04N19/15; H04N19/172; H04N19/174; H04N19/196; H04N19/423; H04N19/50; H04N19/85; H04N19/88; H04N19/91; (IPC1-7): H04N7/24; H04N11/04
Domestic Patent References:
| JP3192878A |
Attorney, Agent or Firm:
Kaneo Miyata (1 person outside)
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