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:
Aug. 22, 2000
Filed:
Feb. 17, 1999
David A Zimlich, Boise, ID (US);
Garrett W Hall, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
A transmission line tap for a field emission display includes a driving circuit formed from a charging and clearing circuit and a storage circuit. In one embodiment, the charging and clearing circuit is a single transistor coupled between a supply voltage and the storage circuit. The storage circuit is a single storage capacitor coupled between the transistor and the reference potential. In another embodiment, the charging and clearing circuit is formed from three transistors and an intermediate capacitor, and the storage circuit is formed from a storage capacitor and an output buffer. In either embodiment, pulses of an input voltage selectively charge the storage capacitor to a fixed voltage. The driving circuit then drives a column line of an emitter substrate in response to the storage capacitor. In the first embodiment, the storage capacitor is cleared by pulsing the supply voltage. In the second embodiment, the charging and clearing circuit is self-clearing such that no pulse of the supply voltage is required. Each embodiment is driven by a transmission line using constructively interfered pulses to establish the input voltage.