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:
Jan. 26, 1982
Filed:
Jun. 02, 1980
Applicant:
Inventor:
Robert R Shepard, Fremont, CA (US);
Assignee:
Rolm Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 179 / ;
Abstract
An improved telephone station set for use with a switching system which senses flashing is disclosed. A separate flash key is included on the set. Depression of the flash key causes decoupling of the set for a predetermined time which corresponds to the flash window. Depression of the hook switch, assures decoupling of the set for a sufficiently long period of time so that a hang-up is detected even if the hook switch is immediately released.