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. 04, 2003
Filed:
Aug. 19, 1999
John Ainslie Stewart, Glasgow, GB;
Vijaya G. Ceekala, Santa Clara, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
An apparatus for and method of self-testing a data packet communications device are disclosed. The apparatus tests the analog and digital transmission and reception capabilities of the device by generating a bit sequence, which the communications device forms into a packet, transmits the packet, then receives the packet and removes the bit sequence. The apparatus then compares the received bit sequence with another bit sequence and generates an error signal if the sequences fail to correspond. The bit sequence is generated by a linear feedback shift register which generates a pseudo-random sequence. Another linear feedback shift register generates another pseudo-random sequence which is compared to the first sequence. In this manner functional self-testing can be performed without an external testing device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile