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. 10, 2002
Filed:
Sep. 10, 1998
Barry W. Jones, Hoffman Estates, IL (US);
Daniel F. Baker, Rolling Meadows, IL (US);
Rockwell Semiconductor Systems, Inc., Newport Beach, CA (US);
Abstract
A method and apparatus are provided for processing signals received on a R multifrequency compelled signalling subscriber channel within a telephone switch. The method includes the steps of disposing a digital signal processor within the telephone switch between an inbound path of the R multifrequency compelled signal subscriber channel and a controlling processor of the telephone switch and detecting an R multifrequency compelled signalling control transmission by the digital signal processor on the inbound path. The method further includes the steps of responding to the control transmission by the digital signal processor transmitting an acknowledgement on an outbound path of the subscriber channel and transferring a symbolic representation of the control transmission to the controlling processor of the switch.