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:
May. 22, 2001
Filed:
Mar. 08, 1999
Applicant:
Inventors:
Wayne W. Ballantyne, Plantation, FL (US);
William J. Wingfield, Lauderhill, FL (US);
Atif Meraj, Plantation, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 5/32 ;
U.S. Cl.
CPC ...
H03B 5/32 ;
Abstract
A crystal reference (,) comprises a crystal element (,) integrally housed with a memory device (,), and is coupled to the memory device through an anti-resonant network (,). The network is designed such that it presents a high impedance at the natural frequency of the crystal element. Temperature performance information for the particular crystal element is stored in the memory device, and is accessed via terminal (,) using a single wire interface protocol.