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:
Apr. 16, 2002
Filed:
Sep. 28, 1998
Shinsuke Nishida, Tokyo, JP;
Fourie, Inc., Tokyo, JP;
Abstract
An A/D converter converts analog data received from a light-receiving element via an amplifier to digital data. From the A/D converter, digital data is transmitted via a multiplier to a comparing circuit. The comparing circuit compares the digital data with a reference data, and when the absolute value of the difference thereof is equal to or more than a present threshold value outputs the digital data to the switch circuit via the multiplier, and also updates the reference value. Then the reference data is updated with the digital data. When a bus line is idle, a controller switches output from the switch circuit and outputs the digital data to the bus line. Then address data and time code are appended to the digital data.