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. 07, 2001
Filed:
Mar. 24, 2000
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
A discriminator capable of generating a multi-level signal with less restrictions is provided. In a discriminator D,, a wave-shaping circuit,shapes the waveform of one branched multi-level signal MS, according to a control signal CS from a control signal generator,so that a detector,that follows the wave-shaping circuit,can correctly detect a first reference level RL,. The detector,detects the first reference level RL,from an output signal OS,from the wave-shaping circuit,. A reference level generator,generates a second reference level RL,of the multi-level signal MS. A threshold generator,generates thresholds Th,, Th,, and Th,as much as required according to the first and second reference levels RL,and RL,. Comparators,to,compares the amplitude of the other branched multi-level signal MS with the thresholds Th,, Th,, and Th,. A control signal generator,generates a control signal CS according to the comparison results from the comparators,to,. The above structured discriminator D,enables the transmitting side to generate a multi-level signal with less restrictions.