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. 11, 2002
Filed:
Sep. 15, 1999
Se-jin Kang, Seoul, KR;
Sung-soo Dong, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A flexible BPSK (binary phase shift keying)/QPSK (quadrature phase shift keying) modulator of the wideband code division multiple access system. The flexible modulator includes a first link selecting unit for selecting a modulating type after receiving a signal of a reverse channel, alternately, an I (In-phase) signal and Q (quadrature) signal of a forward channel for which a spread modulation is to execute, a Hadamard spreading unit permits Hadamard code spreading modulation after receiving the I and Q signals from the first link selecting unit, and a spreading means for executing a spread modulation for a pseudo-noise (PN) code of the exchanged I and Q signals. The present invention can reduce the amount of hardware required by controlling a similar parts of the channel in a wideband code division multiple access system, especially a BPSK/QPSK modulation parts, by an external register and a flexible channel structure for joint control between channels. A reduced number of gates, and reduced power consumption, as well as reliability can be increased by the flexible modulator.