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:
Sep. 26, 1978
Filed:
Mar. 30, 1977
Applicant:
Inventors:
Larry Allen Coldren, Holmdel, NJ (US);
Alastair Malcolm Glass, Millington, NJ (US);
Ross Alan Lemons, Tinton Falls, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H03H / ; H04R / ;
U.S. Cl.
CPC ...
333 / ; 333 / ; 333 72 ;
Abstract
A crystalline body having two or more domains interfacing at respective domain walls is utilized as an acoustic wave device. Input and output transducers and, in some embodiments, acoustic wave reflectors, are disposed on the crystalline body such that the delay experienced, or the path followed, by acoustic waves propagating between the input and output transducers is varied by varying the positions of the domain walls. This, in turn, is accomplished by way of control signals applied across the crystalline body.