The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Nov. 30, 1998
James Henry Arbeiter, Hopewell, NJ (US);
Roger Frank Bessler, Lawrenceville, NJ (US);
North Shore Laboratories, Inc., Pennigton, NJ (US);
Abstract
A compressed data system, which communicates content of each of successive original frames of a digital motion picture over a limited-bandwidth transmission channel, comprises a digitally-controlled pre-processor and a digitally-controlled post-processor. The digitally-controlled pre-processor is effective in reducing the spatial-frequency bandwidth of the content of an original frame, applied to the input of a compression encoder, in response to the digital control value of a first digital control signal, applied as a control input to the pre-processor, being indicative of the fact that the bandwidth of the compressed data to be communicated over the limited-bandwidth transmission channel would exceed the limited bandwidth of the transmission channel. Further, the pre-processor derives one or more digital control values of a second digital control signal communicated over the limited-bandwidth transmission channel without ever being compressed directly to the digitally-controlled post-processor. The digitally-controlled post-processor is capable of employing the one or more digital control values of the second digital control signal communicated thereto to control the synthetic extension of the spatial-frequency bandwidth of the content of any communicated digital motion picture frame having a reduced spatial-frequency bandwidth by an amount which results in the substantially restoration to the spatial-frequency bandwidth of the corresponding original frame. Permits either an increase the number of frames per second of a motion picture that can be communicated over narrow-band transmission channel or, in a wide-band channel, no decrease in the level of quantization of the image samples in response to the occurrence of excessive image-frame spatial information.