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:
Sep. 16, 1980
Filed:
Apr. 14, 1978
Paolo D'Amato, Turin, IT;
Mario Cominetti, Turin, IT;
Other;
Abstract
A method for reducing the probability of the loss of a character in a digital transmission employing biphase coding which comprises the steps of identifying the bits out-of-code, that is the bits which don't correspond to the two biphase code configurations; complementing the logic value said bits are given by the demodulator, if there is parity error; inhibiting a character not comprising out-of-code bits, but in which parity error occurs or if two or more out-of-code bits are present in the character. The circuit implementing the method comprises shift register means for storing the information bits and control signals identifying the out-of-code bits; parity check means; complementing means for complementing the logic state which are given by the demodulator to the out-of-code bits, said complementing means being conditioned by the simultaneous occurrence of the out-of-code bit and the parity error in a character; logic means for inhibiting the character in presence of parity error alone or of two or more out-of-code bits.