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. 27, 2006
Filed:
May. 27, 2002
Yeow Teng Toh, Singapore, SG;
Hendricus Martinus Van Der Wijst, Krefeld, DE;
Kam Choon Kwong, Singapore, SG;
Yeow Teng Toh, Singapore, SG;
Hendricus Martinus Van Der Wijst, Krefeld, DE;
Kam Choon Kwong, Singapore, SG;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A bipolar transistor (Tr) in an oscillator stage of a tuner is provided with a diode (D) in series with a resistor (R) coupled between the base of the transistor (Tr) and the reference voltage to which the emitter of the transistor (Tr) is coupled. The diode (D) allows a decreased resistor (R) value which causes the supply voltage ripple (Vr) on the collector originating from the base to decrease so as to better compensate the supply ripple (Vr) on the collector directly originating from the supply voltage (Vs.).