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:
Jul. 15, 2008
Filed:
Jun. 21, 2006
Jae Sup Lee, Yongin-si, KR;
Tae Wook Kim, Nonsan-si, KR;
Seung Woo Kim, Yongin-si, KR;
Jeong Hoon Lee, Pohang-si, KR;
Young Sik Kim, Pohang-si, KR;
Jae Sup Lee, Yongin-si, KR;
Tae Wook Kim, Nonsan-si, KR;
Seung Woo Kim, Yongin-si, KR;
Jeong Hoon Lee, Pohang-si, KR;
Young Sik Kim, Pohang-si, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A high speed passband phase modulation apparatus and method are provided. In the phase modulation apparatus, an RF phase shifter modulates a phase of a local signal that is generated in a VCO according to a digital input. The RF phase shifter is controlled by a phase-controlled loop so that a baseband phase shifter is phased locked to a modulation reference signal from the local signal and a reference clock signal according to the digital input. The phase-controlled loop phase-locks using the modulation reference signal so that the phase-modulated signal generated in the RF phase shifter has a phase value according to the digital input.