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:
Jun. 18, 2002
Filed:
May. 27, 1997
Dwight Jaynes, Richardson, TX (US);
Michael D. Bienek, Wylie, TX (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
The circuit to be used either to create a simultaneously switching outputs (SSO) event or to create a simultaneously switching inputs (SSI) event. The circuit uses a toggle register to generate a toggling signal and a signal line to operate logic to select the toggling signal as output from the circuit for the SSO event. The signal line is connected to an external pin. The circuit uses another signal line, also connected to an external pin, to disable or tristate the output driver that drives the I/O pin. This permits the circuit to receive input for the SSI event. Two chips, each having a plurality of such circuits, can be arranged so that one chip generates the SSO event and sends it to the second chip, which is configured to receive the SSI event. The circuit also has a pair of registers in a cascade arrangement to provide precise control of the output signal. The circuit has an additional register to disable the output driver and permit the circuit to receive input for a scan event.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile