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:
Jun. 13, 2000
Filed:
Feb. 16, 1999
Applicant:
Inventor:
Alfonsus M Van Amesfoort, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04H / ; H04B / ;
U.S. Cl.
CPC ...
455-32 ; 455131 ; 343876 ; 348725 ;
Abstract
To control a converter of a satellite receiving system, the converter receives not only a dc voltage but one of two different voltages (normally 13 or 17 volt) also an alternating voltage (normally 22 kHz). It has to be possible to control more equipment along the same (coax) cable like amplifiers and switchers and to switch between more sub-bands than two. To achieve this the satellite receiver includes a power supply unit having switching apparatus which can combine the supplying of one of the two dc voltages with an alternating voltage continuous tone or burst as (switching) information.