Laminated resonant structure antenna and multi-frequency radio communication appts. contg. same

Application Number: 00122532Application Date: 2000.08.04Publication Number: 1283941Publication Date: 2001.02.14Priority Information: 1999/8/5 FR 9910180International: H01Q5/00;H04Q7/32Applicant(s) Name: AlcatelAddress: Inventor(s) Name: Jean Philip Kupuzz;Pascal Hoff;Charles N. KomuPatent Agency Code: 11038Patent Agent: luo echuanAbstract An antenna with stacked resonant structures includes: a guide line (CR, CF) for guiding electromagnetic waves formed in a conductive layer (C) lying in a Read more

Radio frequency device used for multi-frequency bands radio communication device

Application Number: 00124747Application Date: 2000.09.14Publication Number: 1288271Publication Date: 2001.03.21Priority Information: 1999/9/15 US 09/396384International: H04B1/04Applicant(s) Name: Motorola, Inc.Address: Inventor(s) Name: Chen Yanguang;Daer Schvent;Michel LandhelPatent Agency Code: 11219Patent Agent: yu mangAbstract A radio frequency (RF) coupler apparatus suited for use in a multi-band wireless communication device, has a termination device and couplers. Each of the couplers has Read more

Multi-frequency anticollision radio system for train

Application Number: 00109355Application Date: 2000.05.31Publication Number: 1325805Publication Date: 2001.12.12Priority Information: International: B61L23/00Applicant(s) Name: Zhao LianyinAddress: Inventor(s) Name: Zhao Lianyin;Chen XinPatent Agency Code: 00000Patent Agent: Abstract A multi-frequency anti-collision radio system for train features that a multi-frequency radio device equipped to each train can emit the radio signals at a frequency correspondent to its possessed rail, Read more

Multi-frequency band receiver

Application Number: 00102392Application Date: 2000.02.22Publication Number: 1264963Publication Date: 2000.08.30Priority Information: 1999/2/22 US 09/255,181International: H04B1/40Applicant(s) Name: Motorola, Inc.Address: Inventor(s) Name: David S. Beckham;David Z. Din;Frank SkuttaPatent Agency Code: 11038Patent Agent: fu jianjunAbstract A multiple frequency band receiver (102) receives at least two frequency bands that are close but not adjacent. A first bandpass filter (304) passes Read more