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:
Aug. 18, 1987
Filed:
Oct. 02, 1985
Tomoyuki Haganuma, Yokohama, JP;
Yoji Kaneko, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An encoding apparatus of the invention includes a multiplexer for converting serial input video data into 8-bit parallel video data, a counter for counting a run length of the serial input video data so as to generate its count as 6-bit parallel data, a detection circuit for detecting a variability point of the input video data, a mode control circuit for selecting the parallel output from the multiplexer or the counter in accordance with the content of the input video data, and a shift register for storing the parallel output selected by the mode control circuit. Meanwhile, a decoding apparatus of the invention includes a mode determination circuit for determining the content of the code data representing the video data or run length data, and counters for counting code data representing the video data or the run length data, respectively. The code data includes mode data representing the content thereof, and the mode determination circuit determines the content of the code data in accordance with the mode data.