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. 10, 2001
Filed:
Feb. 04, 1999
Yaqi Cheng, Las Vegas, NV (US);
Warren L. Franz, Dallas, TX (US);
Walter Y. Chen, Franklin, MA (US);
Michael O. Polley, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A system for digitizing voiceband signals at the remote terminal (,) of a Digital Subscriber Line (DSL) connection and embedding the digitized voiceband component into an active DSL data stream using a DSL modem (,). Voiceband transmissions between the remote terminal (,) and the central office call switching equipment (,) occur in the analog domain when the DSL modem (,) is OFF and in the digital domain when the DSL modem (,) is ON with the digital voiceband signals transmitted over a DSL link. Preferably, the remote terminal (,) can drive a real analog telephone (,) by providing battery feed, ring-trip detection, off-hook detection and ringing generation (,) In-house 4-wire lines pairs (,) are configured between the modem, telephones and computer or home network to permit all digital transmission from the subscriber to the central office.