Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1976-09-30
1977-09-06
Martin, John C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 85, H04N 712
Patent
active
040472213
ABSTRACT:
In interframe coding apparatus in which an input signal is encoded by an interframe coder and its output code is written in a buffer memory, and is read out therefrom at a constant bit rate, a variable characteristics comb filter is provided at a stage preceding the interframe coder. The period of the frequency characteristics of the comb filter is selected to be the frame period of the input signal. By a controller, the occupancy of the buffer memory is detected to control either one or both of the attenuation in the elimination band and high frequency cut-off characteristics of the comb filter detected value to prevent an overflow from the buffer memory.
REFERENCES:
patent: 3962535 (1976-06-01), Haskell
patent: 4006297 (1977-02-01), Koga
Kanaya Fumio
Yasuda Hiroshi
Martin John C.
Nippon Telegraph and Telephone Public Corporation
Psitos Aristotelis M.
LandOfFree
Interframe coding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interframe coding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interframe coding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2166813