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:
Jan. 10, 1984
Filed:
Feb. 22, 1982
Applicant:
Inventor:
Edmond De Niet, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ; 370 18 ;
Abstract
A device for introducing digital data into a medium having bivalent or multivalent states and having a coding device and a commutation device. The coding device receives under the control of a first clock pulse series, data signals and forms therefrom a number of code bits which are combined as an input to the commutation device. The coding efficiency is smaller than 1. Under the control of a second clock pulse series, the commutation device switches each input to apply the code bits to a number of channels of the medium, so that for each channel certain code restrictions are satisfied.