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Class Information
Number: 381/306
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic > Stereo speaker arrangement > With image presentation means
Description: Subject matter in which the transducers are arranged to emit sound in conjunction with a television screen, computer monitor, motion picture screen, etc.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6343132 Loudspeaker Jan. 29, 2002
6335974 Speaker system for television receiver with sound ducts and perforated panels Jan. 1, 2002
6330486 Acoustic perspective in a virtual three-dimensional environment Dec. 11, 2001
6324052 Personal computing devices comprising a resonant panel loudspeaker Nov. 27, 2001
6321869 Speaker system for personal computers Nov. 27, 2001
6275595 High performance stereo sound enclosure for computer visual display monitor and method for construction Aug. 14, 2001
6243478 Flat speakers for personal computer Jun. 5, 2001
6205229 Television having a device for preventing vibration of speaker Mar. 20, 2001
6175489 Onboard speaker system for portable computers which maximizes broad spatial impression Jan. 16, 2001
6151401 Planar speaker for multimedia laptop PCs Nov. 21, 2000
6137890 Lumped parameter resonator of a piezoelectric speaker Oct. 24, 2000
6091831 Electronic product with a function knob capable of receiving voice signal Jul. 18, 2000
6091827 Image display device Jul. 18, 2000
6084970 Mono-stereo conversion device, an audio reproduction system using such a device and a mono-stereo conversion method Jul. 4, 2000
6035051 Sound apparatus Mar. 7, 2000
6009181 Method of controlling sound in computer monitor with sound processing functions Dec. 28, 1999
5982537 Speaker apparatus with a picture projecting screen Nov. 9, 1999
5978211 Stand structure for flat-panel display device with interface and speaker Nov. 2, 1999
5963652 Controlling multimedia aspects of a computer Oct. 5, 1999
5956411 Personal multimedia speaker system Sep. 21, 1999
5903656 Monitor has tubular loudspeaker reducing CRT's mask vibrations May. 11, 1999
5870485 Computer visual display monitor with integral stereo speaker and directional microphone and method for construction Feb. 9, 1999
5828768 Multimedia personal computer with active noise reduction and piezo speakers Oct. 27, 1998
5553149 Theater sound for multimedia workstations Sep. 3, 1996
5504820 Television receiver with stereo speakers Apr. 2, 1996
5479520 Loudspeaker system Dec. 26, 1995
5479516 Loudspeaker demonstrating Dec. 26, 1995
5459790 Personal sound system with virtually positioned lateral speakers Oct. 17, 1995
5452025 Television set with sound-reflecting sidewalls Sep. 19, 1995
5448647 Electric apparatus having speaker Sep. 5, 1995
5400414 Loudspeaker Mar. 21, 1995
5400408 High performance stereo sound enclosure for computer visual display monitor and method for construction Mar. 21, 1995
5390246 Portable multimedia marketing system Feb. 14, 1995
5386473 Passive surround sound circuit Jan. 31, 1995
5291556 Audio system for a computer display Mar. 1, 1994
5274709 Speaker device for television receiver Dec. 28, 1993
5261006 Loudspeaker system comprising a helmholtz resonator coupled to an acoustic tube Nov. 9, 1993
5228085 Perceived sound Jul. 13, 1993
5197100 Audio circuit for a television receiver with central speaker producing only human voice sound Mar. 23, 1993
5181247 Sound image enhancing Jan. 19, 1993
5166802 Television receiver with loudspeaker enclosure Nov. 24, 1992
5119429 Audio installation, in particular stereophonic, for television sets with a large built-in low-frequency loudspeaker Jun. 2, 1992
5073945 Loudspeaker system Dec. 17, 1991
5027403 Video sound Jun. 25, 1991
5025474 Speaker system with image projection screen Jun. 18, 1991
5004067 Cinema sound system for unperforated screens Apr. 2, 1991
5005201 Apparatus and method thereof for improvement of stereophonic sound Apr. 2, 1991
4998283 Screen device Mar. 5, 1991
4926487 Speaker system May. 15, 1990
4860363 Loudspeaker system Aug. 22, 1989

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