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Class Information
Number: 333/153
Name: Wave transmission lines and networks > Coupling networks > Delay lines including elastic surface wave propagation means > Including discontinuities within propagation means
Description: Subject matter wherein abrupt modifications are included in the elastic surface wave path so as to alter the delay or transmission characteristics of the path.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7889025 Anti-reflective acoustic diffuser for SAW and BAW devices Feb. 15, 2011
7606294 Channel quality estimation method and receiving apparatus Oct. 20, 2009
7595546 Printed circuit board Sep. 29, 2009
7469017 Multimodulation transmitter Dec. 23, 2008
7372897 Portable information communication terminal, program, and recording medium May. 13, 2008
7352800 Method of partial parallel interference cancellation Apr. 1, 2008
7180388 Surface acoustic wave device Feb. 20, 2007
7053524 Surface acoustic wave sensor or identification device with biosensing capability May. 30, 2006
6967428 Selectable reflector arrays for SAW sensors and identification devices Nov. 22, 2005
6856214 Surface wave devices with low passband ripple Feb. 15, 2005
6815867 Substrate usable for an acoustic surface wave device, a method for fabricating the same substrate and an acoustic surface wave device having the same substrate Nov. 9, 2004
6683515 Surface-acoustic-wave filter providing outputs with different delay times and communications unit Jan. 27, 2004
6559736 Integrated tunable surface acoustic wave with quantum well structure technology and systems provided thereby May. 6, 2003
6545567 Programmable analog tapped delay line filter having cascaded differential delay cells Apr. 8, 2003
6229409 Surface acoustic wave matched filter May. 8, 2001
6208062 Surface acoustic wave transponder configuration Mar. 27, 2001
6075898 Reflective array compressor Jun. 13, 2000
6025762 Delay line incorporating a surface acoustic wave ladder filter and method of providing same Feb. 15, 2000
5841214 Identification mark operating with acoustic surface waves Nov. 24, 1998
5691698 Identification and/or sensor system Nov. 25, 1997
5530410 Acoustic frequency mixing devices using potassium titanyl phosphate and its analogs Jun. 25, 1996
5519365 Waveguide for an acoustic charge transport device May. 21, 1996
5396199 Surface acoustic wave device Mar. 7, 1995
5353304 Surface acoustic wave device, and demodulating apparatus and communication system using the surface acoustic wave device Oct. 4, 1994
5319326 Surface-wave-type reflective delay line Jun. 7, 1994
5274345 Dual function reflector structures for interdigital saw transducer Dec. 28, 1993
5189330 Surface acoustic wave device Feb. 23, 1993
5189393 Dual technology motion sensor Feb. 23, 1993
5179309 Surface acoustic wave chirp filter Jan. 12, 1993
5138215 Saw reflective array correlator with amplitude error compensating polymer reflective array grating Aug. 11, 1992
5130597 Amplitude error compensated saw reflective array correlator Jul. 14, 1992
5126706 Surface wave arrangement with conversion structure for preventing undesirable reflected waves Jun. 30, 1992
5113115 Saw slanted array correlator with amplitude error compensating polymer reflective array grating May. 12, 1992
5111168 Real-time, in-situ saw filter delay adjustment May. 5, 1992
5084687 Surface acoustic wave encoder/decoder Jan. 28, 1992
5043620 Surface acoustic wave convolver and convolution integrator using same Aug. 27, 1991
5010270 Saw device Apr. 23, 1991
4973875 Surface elastic wave device Nov. 27, 1990
4965479 Surface transverse wave resonator Oct. 23, 1990
4952833 High density surface acoustic waveguide channelizer Aug. 28, 1990
4943751 Surface acoustic wave element Jul. 24, 1990
4933588 Higher order transverse mode suppression in surface acoustic wave resonators Jun. 12, 1990
4878036 Surface elastic wave filter Oct. 31, 1989
4837476 Surface acoustic wave resonator having transducers and reflectors of different periods Jun. 6, 1989
4825212 Arrangement for use with a touch control system having a spherically curved touch surface Apr. 25, 1989
RE32859 Acoustic surface wave devices Feb. 7, 1989
4803448 Cantilever mount of a substrate lamina of a surface wave device Feb. 7, 1989
4757283 Technique for frequency trimming of a saw device using dielectric layers disposed between a pair of transducers of the saw device Jul. 12, 1988
4749971 Saw delay line with multiple reflective taps Jun. 7, 1988
4748364 Surface acoustic wave device May. 31, 1988

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