GB2585592A - System for configuration and status reporting of audio processing in TV sets - Google Patents

System for configuration and status reporting of audio processing in TV sets Download PDF

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Publication number
GB2585592A
GB2585592A GB2014279.0A GB202014279A GB2585592A GB 2585592 A GB2585592 A GB 2585592A GB 202014279 A GB202014279 A GB 202014279A GB 2585592 A GB2585592 A GB 2585592A
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GB
United Kingdom
Prior art keywords
audio
sound
band
compressor
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2014279.0A
Other versions
GB2585592B (en
GB202014279D0 (en
Inventor
A Brault Timothy
Xu Fen
Easley Matthew
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THAT Corp
Original Assignee
THAT Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by THAT Corp filed Critical THAT Corp
Publication of GB202014279D0 publication Critical patent/GB202014279D0/en
Publication of GB2585592A publication Critical patent/GB2585592A/en
Application granted granted Critical
Publication of GB2585592B publication Critical patent/GB2585592B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone, or bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/02—Manually-operated control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Abstract

Systems are disclosed including a television (TV) set having included audio system. The TV set permits control over various functions, at least including audio volume, via a remote control. When the viewer activates the remote volume control, a graphic appears indicating the state of the volume control and, optionally the mute status. The graphic can be presented on the TV screen. In alternate embodiments, the graphic may be presented on a display of the remote, or even some other location, e.g., a different remote control. If a mute button is provided on the remote control, when the viewer activates the mute button, a graphic appears indicating the state of muting and, optionally, the volume control status. The TV set also offers control over various aspects of the audio system, including settings which go beyond volume up/down, generally through some sort of menu system.

Claims (7)

1. A system for enhancing stereo audio adjustment in TV sets, the system comprising: a sound processing system configured to provide audio controls to modify the characteristics of the processed audio; a display for observation by a user and configured to display volume control information and sound settings corresponding to user-selectable sound processing characteristics; a control device configured to adjust the sound processing characteristics in response to user input; and activation means to activate the display via a single selection on the control device.
2. The system of claim l, wherein the system is configurable to produce a desired sound listening mode.
3. The system of claim l, wherein the system is configurable to change the characteristics of a given sound listening mode.
4. The system of claim 2, further comprising: a dual processing protection (DPP) processor configured to limit the audio difference to sum ratio (L-R)/(L+R) by (i) attenuating the audio difference signal, producing a reduced remaining difference signal, and (ii) adjusting the level of the sum signal; and wherein the desired listening mode is an audio processing configuration operative to enhance a listenerâ s perception of a center image in stereo audio, while maintaining a perception of a surrounding difference channel.
5. The system of claim 4, further comprising a two channel surround processor configured to set the amount of perceived sound field spread in multiple dimensions by filtering the reduced remaining difference signal from the DPP processor and generating perceived audio reflections of the filtered signal.
6. The system of claim 2, wherein the sound processing system comprises: an equalizer configured to shape the input audio frequency response for the desired spectral characteristics; a crossover network to divide the input audio into two bands, the first band being the lower band and the second band being the upper band; a first compressor for processing the first band configured to produce output signals responsive to the energy level of the lower band frequency portion of the input audio signal; a second compressor for processing the second band configured to produce output signals responsive to the energy level of the upper band frequency portion of the input audio signal; a third compressor with a configurable target level determined dynamically by system volume control feedback; a high pass filter configured to remove frequencies that cannot be reproduced by the loudspeaker; a summer to recombine first and second bands; and a soft clipper operative to limit the perceived distortion of left and right audio signals that briefly exceed a full scale output.
7. The system of claim 2, wherein the sound processing system comprises: at least one compressor with a configurable target level determined dynamically by system volume control feedback; and a volume control positioned after the compressor.
GB2014279.0A 2018-03-28 2019-03-27 System for configuration and status reporting of audio processing in TV sets Active GB2585592B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862649461P 2018-03-28 2018-03-28
PCT/US2019/024216 WO2019191186A1 (en) 2018-03-28 2019-03-27 System for configuration and status reporting of audio processing in tv sets

Publications (3)

Publication Number Publication Date
GB202014279D0 GB202014279D0 (en) 2020-10-28
GB2585592A true GB2585592A (en) 2021-01-13
GB2585592B GB2585592B (en) 2022-08-17

Family

ID=68060747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2014279.0A Active GB2585592B (en) 2018-03-28 2019-03-27 System for configuration and status reporting of audio processing in TV sets

Country Status (6)

Country Link
CN (1) CN112005491A (en)
GB (1) GB2585592B (en)
MX (1) MX2020010166A (en)
PH (1) PH12020551571A1 (en)
TW (1) TW201946480A (en)
WO (1) WO2019191186A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054071A (en) * 1989-02-03 1991-10-01 Scientific-Atlanta, Inc. Volume control for optimum television stereo separation
US20060126851A1 (en) * 1999-10-04 2006-06-15 Yuen Thomas C Acoustic correction apparatus
US20080095378A1 (en) * 1996-06-07 2008-04-24 That Corporation Btsc encoder
WO2012177572A2 (en) * 2011-06-24 2012-12-27 Beats Electronics, Llc Optimization method for audio playback systems
US20130108055A1 (en) * 2008-11-14 2013-05-02 That Corporation Dynamic volume control and multi-spatial processing protection
US20140185829A1 (en) * 2006-02-07 2014-07-03 Anthony Bongiovi In-line signal processor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054071A (en) * 1989-02-03 1991-10-01 Scientific-Atlanta, Inc. Volume control for optimum television stereo separation
US20080095378A1 (en) * 1996-06-07 2008-04-24 That Corporation Btsc encoder
US20060126851A1 (en) * 1999-10-04 2006-06-15 Yuen Thomas C Acoustic correction apparatus
US20140185829A1 (en) * 2006-02-07 2014-07-03 Anthony Bongiovi In-line signal processor
US20130108055A1 (en) * 2008-11-14 2013-05-02 That Corporation Dynamic volume control and multi-spatial processing protection
WO2012177572A2 (en) * 2011-06-24 2012-12-27 Beats Electronics, Llc Optimization method for audio playback systems

Also Published As

Publication number Publication date
PH12020551571A1 (en) 2021-09-06
GB2585592B (en) 2022-08-17
CN112005491A (en) 2020-11-27
GB202014279D0 (en) 2020-10-28
WO2019191186A1 (en) 2019-10-03
TW201946480A (en) 2019-12-01
MX2020010166A (en) 2020-10-22

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