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:
Jul. 19, 1983
Filed:
Mar. 31, 1981
Applicant:
Inventors:
Deepak Muzumdar, Somerset, NJ (US);
George A Mierzwa, Boca Raton, FL (US);
Richard Sanders, Boca Raton, FL (US);
Orrie J Van der Meiden, Boca Raton, FL (US);
Assignee:
Siemens Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ;
U.S. Cl.
CPC ...
370100 ; 3701101 ; 179 / ;
Abstract
A frame format for PCM speech data in a telphone transmission system and a digital telephone apparatus for use with this frame format are disclosed. The frame format includes a superframe formed of 32 data frames, each comprising three 8 bit data words (bytes). The first data word of a frame includes a synchronization code and a signalling code; the second and third data words include PCM speech samples or other digital data. A transmission rate of 192 kilobits/second is chosen so as to match the PCM sampling rate of 8 KHz.