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:
Mar. 24, 1998
Filed:
Dec. 22, 1995
Joseph L Harris, Athens, AL (US);
David Paul Nelson, Huntsville, AL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An apparatus and method are provided for determining the activity status of a PCM channel in a telecommunications system. The method (600-680) and apparatus (400) utilize a codec (220) within the PCM channel which converts an analog signal to a digital signal and converts a digital signal to an analog signal. Within the apparatus (400), a memory register (402) is coupleable to the codec (220) to repeatedly obtain and store a digital byte of a plurality of digital bytes from the PCM channel. A processor (404) coupled to or containing the memory register (402) repeatedly, for a predetermined period of time, determine whether an ordered arrangement of bits of a digital byte has a predetermined bit pattern and accumulate a count of digital bytes having the predetermined bit pattern. The processor (404) then determines whether the accumulated count is greater than a predetermined value and provides a notification indicating the status of the PCM channel.