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:
Dec. 30, 1980
Filed:
May. 21, 1979
Charles E Huffman, Plano, TX (US);
Robert J McGuire, Richardson, TX (US);
Herbert E Welch, Richardson, TX (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A concept is illustrated for protecting active components in a multiline repeater station switching system to a state of 'fail operability'. This is accomplished by dividing the signal received on the single spare IF transmission line into IF and baseband signals and applying the divided set of signals to two spare switches. Thus, there is provision for using the spare line as either a repeat line staying at the IF frequency or as a drop line at baseband frequency. The same concept is used in the transmit portion wherein the output of two spare switches is combined to be transmitted over a single IF line. Thus, the single line can be used to input either a repeated IF signal or an insert baseband signal. A further concept of the invention is to make both the IF and baseband switching modules identical in electrical contact construction so that the multiline switch can be easily altered into any desired set of repeat and drop or insert combinations.