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:
Apr. 26, 2005
Filed:
Mar. 29, 2002
Jonathan Park, San Jose, CA (US);
Jonathan Park, San Jose, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A mask-programmable logic device includes a 'dedicated' device-wide distribution network for device-wide signals such as clocks. Distribution networks for secondary clocks and similar signals, as well as for other high-fanout signals, are designed on a custom basis for each user configuration to be implemented by mask programming, using design techniques that are well known in application-specific integrated circuit design. This accomplishes, at the same time, elimination of the need to custom design the device-wide distribution network for each user configuration, preservation of the timing characteristics of a comparable conventional programmable logic device on which the user configuration may be based, reduction of die-size and power requirements as compared to the comparable conventional programmable logic device, and reduction of the average design time necessary to implement a given user configuration.