Data storing and outputting apparatus

Details Data storing and outputting apparatus Data storing and outputting apparatus

1996-06-25

1999-06-29

Gaffin, Jeffrey

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341 61, 341123, H03M 734

Patent

active

059174382

ABSTRACT:
A first data storing and outputting apparatus includes a coding unit for coding data of a program through N coding processes and generating N sets of coded data of the program, N being a natural number more than one, a memory for storing the N sets of coded data of the program, and a reading and outputting circuit responsive to a request for selectively reading and outputting one of the N sets of coded data of the program from the memory. A second data storing and outputting apparatus includes a first coder for coding data of a program according to a first coding process and generating first coded data of the program, a memory for storing the first coded data of the program, a reading circuit responsive to a request for reading the first coded data of the program from the memory, a decoder for decoding the first coded data of the program from the memory, a second coder for coding an output of the decoder according to a second coding processing and generating second coded data of the program, a data rate adjusting circuit for adding dummy data to the first coded data from the memory and outputting third coded data having a data rate higher than a data rate of the first coded data, and a switch for outputting either of the first coded data from the memory, second coded data, or the third coded data according to a predetermined condition.

REFERENCES:
patent: 5469212 (1995-11-01), Lee
patent: 5510858 (1996-04-01), Shido et al.
patent: 5537409 (1996-06-01), Moriyama et al.
patent: 5565921 (1996-10-01), Sasaki et al.
patent: 5574506 (1996-11-01), Rhodes
patent: 5589993 (1996-12-01), Naimpally
patent: 5596581 (1997-01-01), Saeijs et al.
patent: 5621840 (1997-04-01), Kawamura et al.

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