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Class Information
Number: 333/194
Name: Wave transmission lines and networks > Coupling networks > Electromechanical filter > Using surface acoustic waves > Including spurious signal prevention or reduction means
Description: Subject matter including structure for minimizing undesired electrical or mechanical mode coupling.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620094 |
Spread spectrum clock generator |
Nov. 17, 2009 |
| 7606294 |
Channel quality estimation method and receiving apparatus |
Oct. 20, 2009 |
| 7593450 |
Dynamic frequency hopping |
Sep. 22, 2009 |
| 7586972 |
Code division multiple access enhanced capacity system |
Sep. 8, 2009 |
| 7586992 |
Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system |
Sep. 8, 2009 |
| 7580444 |
Frequency hopping communication system |
Aug. 25, 2009 |
| 7555029 |
Method for decoding a plurality of standard radio waves and standard radio wave receiver |
Jun. 30, 2009 |
| 7551665 |
Ultra wideband receiver architecture using high order Gaussian pulses and method of operation |
Jun. 23, 2009 |
| 7522020 |
Boundary acoustic wave device and method for manufacturing boundary acoustic wave device |
Apr. 21, 2009 |
| 7519097 |
Spread-signal multiplexing circuit |
Apr. 14, 2009 |
| 7505506 |
System and method for generating single sideband, constant envelope, spread spectrum signals with multiple spreading codes |
Mar. 17, 2009 |
| 7501916 |
Elastic wave device having an electrode finger with a side edge projection |
Mar. 10, 2009 |
| 7453333 |
Surface acoustic wave apparatus and communications equipment |
Nov. 18, 2008 |
| 7436273 |
Surface acoustic wave device and method for manufacturing the same |
Oct. 14, 2008 |
| 7411291 |
Component with sensitive component structures and method for the production thereof |
Aug. 12, 2008 |
| 7372897 |
Portable information communication terminal, program, and recording medium |
May. 13, 2008 |
| 7352800 |
Method of partial parallel interference cancellation |
Apr. 1, 2008 |
| 7280008 |
Printed-circuit board, electronic part having shield structure, and radio communication apparatus |
Oct. 9, 2007 |
| 7218188 |
Microelectromechanical apparatus and methods for surface acoustic wave switching |
May. 15, 2007 |
| 7180388 |
Surface acoustic wave device |
Feb. 20, 2007 |
| 7173360 |
Single phase undirectional surface acoustic wave transducer and improved reflectors |
Feb. 6, 2007 |
| 7158763 |
Multi-IDT SAW hybrid communication system |
Jan. 2, 2007 |
| 7154360 |
Filter using piezoelectric material |
Dec. 26, 2006 |
| 7126251 |
Interface acoustic wave device made of lithium tantalate |
Oct. 24, 2006 |
| 7106150 |
Surface acoustic wave filter |
Sep. 12, 2006 |
| 7049908 |
Surface acoustic wave device and communication apparatus |
May. 23, 2006 |
| 7034435 |
Saw device |
Apr. 25, 2006 |
| 7002282 |
Surface acoustic wave device and method of fabricating the same |
Feb. 21, 2006 |
| 6967427 |
Surface acoustic wave device and communication apparatus incorporating the same |
Nov. 22, 2005 |
| 6965282 |
Surface acoustic wave device with two split interdigital transducers connected by specified electrode structures |
Nov. 15, 2005 |
| 6963156 |
Surface acoustic wave device and communication device incorporating same |
Nov. 8, 2005 |
| 6940369 |
Surface acoustic wave device having excellent balancing characteristics between balanced terminals and a communication device using the same |
Sep. 6, 2005 |
| 6933808 |
Microelectromechanical apparatus and methods for surface acoustic wave switching |
Aug. 23, 2005 |
| 6914493 |
Noise resistant low phase noise, frequency tracking oscillators and methods of operating the same |
Jul. 5, 2005 |
| 6909342 |
Recursive saw-filter with a low chip length |
Jun. 21, 2005 |
| 6870302 |
Interdigital transducer, surface acoustic wave filter, and radio communication apparatus |
Mar. 22, 2005 |
| 6844795 |
SAW filter with an improved attenuation characteristic at a frequency any multiple of an attenuation pole frequency at one or both sides of a pass band |
Jan. 18, 2005 |
| 6822537 |
Surface acoustic wave branching filter |
Nov. 23, 2004 |
| 6781282 |
Longitudinally coupled resonator-type surface acoustic wave device |
Aug. 24, 2004 |
| 6720847 |
Longitudinally-coupled resonator surface acoustic wave filter and communication apparatus using the same |
Apr. 13, 2004 |
| 6707352 |
Elastic surface wave device having parallel connected main and auxiliary filters |
Mar. 16, 2004 |
| 6664871 |
Cascaded surface acoustic wave filter system for cancelling time spurious responses |
Dec. 16, 2003 |
| 6650207 |
Longitudinally coupled surface acoustic wave filter with linearly weighted reflectors |
Nov. 18, 2003 |
| 6566786 |
Method and apparatus for selecting at least one desired channel utilizing a bank of vibrating micromechanical apparatus |
May. 20, 2003 |
| 6452464 |
Backgate heterojunction acoustic charge transport device |
Sep. 17, 2002 |
| 6377140 |
Saw resonator filter with bridged-T configuration |
Apr. 23, 2002 |
| 6359368 |
Surface acoustic wave reflector |
Mar. 19, 2002 |
| 6317015 |
Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrate |
Nov. 13, 2001 |
| 6310524 |
Edge reflection type longitudinally coupled saw resonator filter |
Oct. 30, 2001 |
| 6292071 |
Surface acoustic wave filter for improving flatness of a pass band and a method of manufacturing thereof |
Sep. 18, 2001 |
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