KR20050072425A - Audio system with balance setting based on information addresses - Google Patents

Abstract

An audio system for a vehicle that includes a system for allowing an occupant of the vehicle to adjust a balance setting of each audio source (116). The audio system includes a plurality of audio sources (102) that are connected to an amplifier (104). The amplifier is connected to a head unit (106) that adjusts the balance setting of each audio source based on predetermined parameters or user preferences (112). Audio output signals from the audio sources are thus reproduced with different balance settings.

Description

Audio system with balance setting function based on information address {AUDIO SYSTEM WITH BALANCE SETTING BASED ON INFORMATION ADDRESSES}

The present invention relates to a vehicle audio system, and more particularly, to a multi-channel audio system having a balance setting function based on each type of sound source.

Today, automobiles are equipped with a wide range of sound sources. Sound sources are used for the purpose of providing a wide range of audio, communication, and driver information systems that provide vehicle occupants with sound information in varying forms. For example, the sound sources may include acoustic driver guidance from a navigation system, voice instructions from a voice control system, audio output from different sound sources (radio tuner, CD / DVD player, MP3 player), traffic messages, telephone calls, And synthesized voice output for reading e-mail and the like.

Sound sources located within the vehicle can generate an output signal that is meaningful to each listener in the vehicle. For example, the instructions and traffic messages provided by the navigation system are primarily of interest to the driver, while at the same time a CD played for a child in the back seat of the car will only be of interest to the child sitting in the back seat, for example. The driver or child may not want the music played by the CD to be disturbed by acoustic driver guidance from the navigation system.

Today, the balance setting of a speaker in a car can only be set for all sources at the same time. As such, there is a need for an audio system that can have a balance setting function for every sound source used in an automobile.

The invention may be better understood with reference to the accompanying drawings and detailed description. The components in the drawings are not necessarily to scale, emphasis is placed upon explaining the principles of the invention. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the drawings.

1 is a block diagram of an audio system including a balance setting system for a plurality of sound sources.

2 is a GUI showing an exemplary driver information screen.

3 is a GUI showing an exemplary audio information screen.

4 is a block diagram illustrating the steps of a method performed to adjust a balance setting of an audio system.

5 is a block diagram illustrating the steps of a method performed to adjust a balance setting of an audio system based on a passenger segment.

6 is a block diagram of an audio system including a balance setting system for a plurality of sound sources based on a passenger section.

The present invention discloses a multi-channel audio system including a menu-based user interface for setting speaker balance settings based on the type of sound source generating an audio output signal. The multichannel audio system includes a plurality of sound sources that can be selected from a wide range of sound sources that can be disposed in an automobile. The sound source is connected to the head unit and the amplifier. The head unit is a component used for audio management in automobiles. By means of the software module of the head unit, the occupant of the vehicle can use sound sources located in the vehicle, and also manage the balance and volume of these. By the head unit, the occupant of the vehicle can adjust the balance setting of the plurality of speakers based on each sound source or type of sound source.

The head unit includes a user interface module and an audio manager module. The user interface module includes an application for creating a balanced setting graphical user interface (“GUI”) on the display of the multichannel audio system. The balance setting GUI allows the vehicle occupant to adjust the balance setting for each type of sound source capable of providing an audio output signal to the amplifier. The audio manager module is an application operable to set the balance setting of the amplifier for each sound source based on a user-defined setting.

The user interface also provides a passenger GUI that allows the user to set up a multichannel audio system based on the passenger information address. In other words, the multi-channel audio system allows the user to adjust the balance setting based on the position of any type of passenger in the car. The user can identify interest groups (drivers, shift drivers, children, rear seats, etc.) and set balance settings for each of these interest groups. For example, if children are normally sitting in the back seat, the user can adjust the balance setting of each sound source for which they want to hear the reproduction of the audio output only from the rear speakers or only from the selected subset of speakers.

Amplifiers are used to reproduce the output from various sources with various speaker combinations located in the car. The amplifier includes a balance setting circuit that enables to control the balance setting of the output signal provided from the sound source. The audio manager module controls the amplifier's balance setting circuit to operate as defined by the car occupant for each sound source or type of sound source.

Other systems, methods, features and advantages of the invention will become or will become apparent to one with skill in the art upon examination of the accompanying drawings and detailed description. It is intended that all such additional systems, methods, features and advantages be included in this description, be within the scope of the invention, and be protected by the claims.

FIG. 1 discloses a multi-channel audio system 100 for a vehicle that enables a car occupant to adjust and set balance settings of a speaker based on the type of sound source providing the output. By the balance setting, the multichannel audio system 100 can reproduce an audible output signal from each sound source in a predefined number of speakers in the vehicle. In the case where one or more sound sources are generating output at the speakers, the multichannel audio system 100 can apply multiple balance settings to the audio outputs generated at the speakers at the same time.

The multichannel audio system 100 includes a plurality of sound sources 102 connected to the amplifier 104. The rear speaker set 108 and the front speaker set 110 are connected to the output terminal of the amplifier 104. An additional set of speakers may also be connected to the output of amplifier 104. Several different kinds of sound sources may be used for the multichannel audio system 100. The sound source 102 is a navigation system, radio tuner, mobile or remote terminal (telephone), CD / DVD player, radio data system (RDS) tuner, internet radio, cassette player, satellite radio, text-to-speech system, television tuner or MP3 It may be selected from a sound source group including but not limited to a player and the like. Although some of the sound sources 102 are shown in FIG. 1, other sound sources may be part of the multi-channel audio system 100.

The multichannel audio system 100 also includes a head unit 106 connected to the amplifier 104. Head unit 106 may include a GUI module 112 that operates to generate a GUI on the display. As described in more detail below, the vehicle occupant uses the GUI module 112 to adjust and set balance settings of the front and rear speakers 108 and 110, and the occupant has already programmed and stored the head unit 106. You can review the balance settings. In addition, the audio manager module 114 is included in the head unit 106 used to set the balance of the amplifier 104 for each sound source 102. In another embodiment, the head unit 106 may be connected to each sound source 102 or selected sound sources 102. Thereby, the head unit 106 can control the operation of each sound source 102.

The amplifier 104 includes a balance setting circuit 116 that sets the balance of the speakers 108 and 110 based on user settings input to the GUI module 112. Although not shown, the amplifier 104 also includes amplification circuitry and control circuitry designed to reproduce audio output signals from the speakers 108 and 110 based on the balance settings defined by the user for the sound source 102. The audio manager module 114 is programmed to control the balance setting circuit 116 of the amplifier 104 based on the settings that the vehicle occupant determines and inputs.

2 illustrates an example balance setting GUI 200 that may be generated by the GUI module 112. This illustrated balance setting GUI 200 is used to set the balance of the motorist. The balance setting GUI 200 includes a driver information screen tab 202, an audio screen tab 204, and a voice screen tab 206. Although not specifically shown, the multichannel audio system 100 includes a display used to present information to a car occupant or user of the multichannel audio system 100. The display will be connected to the head unit 106. The display is preferably a touch screen display that allows the user to interact with the settings that may be created on the display. Other mechanical adjustment tools, such as buttons, knobs or switches, may be used to control the balance setting options provided by the head unit 106.

When the driver information screen tab 202 is activated, the driver information screen 208 generated by the GUI application or module of the user interface module 112 is displayed. The driver information screen 208 includes a balance information GUI 210 and a balance setting GUI 212. The balance information GUI 210 includes a list of individual sound sources 102 controlled by the settings included in the balance setting GUI 212 of the driver information screen 208.

In the example of FIG. 2, the balance information GUI 210 of the driver information screen 208 includes all sound sources 102 of the multi-channel audio system 100 that provide acoustic driver guidance information to the driver. As described, the balance information GUI 210 includes acoustic driver navigation guidance information that may be generated from an automobile navigation system and traffic information that may be generated by an RDS tuner. RDS is a series of retrofits for VHF and FM radios that started in Europe and expanded worldwide. RDS offers a variety of features, including more precise tuning and a two-character display of the base station. For car radios, RDS provides traffic information as well as alternative frequency tuning methods for the same base station.

The balance setting GUI 212 of the driver information screen 208 also includes a horizontal adjustment bar 214 and a vertical adjustment bar 216. The vehicle occupant may establish a balance setting between the rear speaker 108 and the front speaker 110 by using the horizontal adjustment bar 214. The vertical adjustment bar 216 may adjust the balance setting between the right side and the left side of the vehicle. In other words, the vertical adjustment bar is used to adjust the balance setting between the left and right speakers of the front and rear speakers 108 and 110.

In operation, the vehicle occupant may adjust the balance setting by moving the horizontal adjustment bar 214 and the vertical adjustment bar 216 to a desired position. For illustrative purposes only, the balance setting shown in FIG. 2 sets the audio output from the navigation system and the RDS tuner to be heard only by the driver's speaker. The horizontal adjustment bar 214 and the vertical adjustment bar 216 may adjust the acoustic driver guidance information to be heard by all the speakers, or may be adjusted to be heard only by one speaker. The setting of the horizontal adjustment bar 214 and the vertical adjustment bar 216 causes the audio manager module 114 to adjust the balance setting of the sound source 102 so that the audio output signal generated from the various sound sources 102 is balanced. It is set to the balance setting reflected by the GUI 212.

Also in FIG. 2, the described balance setting GUI 200 can be customized to the motorist. By the multichannel audio system 100, the balance settings can be set up based on the passenger information address. The head unit 106 may be operable to allow a user of the multichannel audio system 100 to set balance settings of the sound source 102 for interest groups, such as drivers, shift drivers or passengers, children and adult passengers, and the like. . Although not described in detail, the GUI module 112 allows the user to use a menu type selection GUI that allows the balance setting GUI 200 to select a group to grow in operation. Other selection methods of selecting the group of interests may be used, such as butts or knobs on the head unit 106 or the like.

3 illustrates a balance setting GUI 200 that a child can use. When the audio screen tab 204 is selected, the user interface 112 of the head unit 106 generates the audio information screen 300. The audio information screen 300 may control balance settings of various sound sources 102 that are tailored to entertainment rather than car navigation or driver information. As described, the balance information GUI 210 shows that the audio information screen 300 is used to control the balance settings of a tuner or radio, television, CD / DVD player, cassette player and MP3 player. As in the case of the driver information screen 208, the horizontal adjustment bar 214 and the vertical adjustment bar 216 of the balance setting GUI 212 are used to control and adjust the balance settings of the sound source 102 belonging to this section. do. In the example shown in FIG. 3, the balance setting is set such that the multichannel audio system 100 reproduces the audible output signals of these sound sources 102 to be equally audible at both sides of the rear speaker 108.

Although not described, the voice screen tab 206 is used to set balance settings of various voice-related sound sources 102. When the voice screen tab 206 is selected, a voice information screen is generated. As in the case of the above example, the horizontal adjustment bar 214 and the vertical adjustment bar 216 of the balance setting GUI 212 are used to control and adjust the balance settings of various sound sources 102 belonging to this section. The type of sound source belonging to this category may be a mobile terminal or a text-to-speech system.

Instead of adjusting one balance setting for all sound sources 102, the car occupant may adjust the balance settings for several sound sources 102. In addition, the balance setting of the sound source 102 may be adjusted based on the interest group. This allows the vehicle occupant to control the speaker from which the audio output is generated so that different speakers 108 and 110 can be used for different sound sources 102. For example, the balance setting in the navigation system can be set up to generate acoustic driver guidance information only from speakers close to the driver's side, and the CD player's balance setting is set up to allow audio output to be played on the rear spurs where the child is seated. Can be. The child may not want to hear the acoustic driver guidance generated by the navigation system, and may want to continue to listen to music from the CD player without interruption. This function is supplied to the multi-channel audio system 100 by providing balance settings for each sound source 102.

FIG. 4 is a block diagram illustrating steps that the multichannel audio system 100 may perform in the multichannel audio system 100 to control the balance setting of the sound source 102. In step 400, the sound source 102 generates a plurality of audio output signals. After the audio output signal is generated at the sound source 102, the audio output signal is transmitted to the amplifier 104 as shown in step 402. The head unit 106 is used to adjust the balance setting of the audio output signal generated at the sound source 102 and provided to the amplifier 104 in step 404. After the balance setting of the audio output signal is adjusted, the audio output signal is reproduced in the speakers 108 and 110 according to the balance setting controlled by the head unit 106 as shown in step 406.

5 shows another block diagram illustrating the steps that may be performed to adjust the balance setting of the sound source 102 based on the passenger segment. In step 500, the user or motorist uses head unit 106 to select the passenger segment. The passenger section may be selected using the balance setting GUI 200 generated in the head unit 106. In step 502, the user or motorist adjusts the balance settings of the selected passenger sector. Once the balance setting is adjusted, the audio output signal can be reproduced in the speakers 108 and 110 according to the balance setting provided by the user for that section as shown in step 504.

6 illustrates another embodiment that includes a multi-channel audio system 600 for a vehicle. The multichannel audio system 600 includes a plurality of sound sources 102 connected to the amplifier 104 and the head unit 106. The head unit 106 is also connected to the amplifier 104. Using the passenger segment selection module 602 located in the head unit 106, the user can select a passenger segment. The audio manager module 114 located in the head unit 106 is used to adjust the balance settings of the plurality of speakers 108 and 110 for the selected passenger segment based on the individual sound sources 102 generating the audio output signal. .

The user can select the passenger segment to correspond to the seat position of the car. As such, the passenger sector that may be selected may include, for example, the driver sector, the passenger sector and the children sector. The passenger segment selection module 602 allows the user to retrieve the balance setting GUI 200 generated for each passenger segment in the same manner as described above. After the user selects the passenger segment, the balance setting GUI 200 for that particular passenger segment can be used to adjust the balance setting of the sound source as in the case of the above-described embodiments. If the user sets the balance settings, the predefined user balance settings are stored in the head unit 106. If the balance settings are not adjusted again, the head unit 106 will revert to the stored balance settings each time the multichannel audio system 600 is turned on.

As described above, some of the audio output signals may be driver information messages generated in the navigation system. When a driver information message is generated and reproduced by the vehicle occupant, audio signals generated from other sound sources may be muted or weakened. The audio signal can be muted or attenuated at the speaker closest to the car occupant side, or at any speaker combination.

While various embodiments of the invention have been described above, it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the invention. Accordingly, the invention should not be limited except in light of the claims and their equivalents.

Claims (49)

As a car audio system, A plurality of sound sources connected to the amplifiers for generating a plurality of audio output signals supplied to the amplifiers; A control unit coupled to the amplifier for adjusting balance settings associated with a plurality of speakers based on each of the respective sound sources for generating the audio output signal, And the control unit includes a user interface for adjusting the balance settings of each sound source, and further adjusting the balance settings based on a user's preference for each sound source. The audio system of claim 1, wherein the balance setting is further adjusted to output an acoustic driver information message from a speaker placed proximate to the driver side of the vehicle. The audio output signal of the other sound source is muted at the speaker disposed closest to the vehicle driver while the acoustic driver information message is being reproduced at the speaker disposed closest to the motor vehicle. Car audio system that is (默 音 化). 3. The automotive audio of claim 2, wherein the audio output signal of the other sound source is reproduced from at least one speaker which is not disposed closest to the vehicle driver side without being disturbed by the acoustic driver information message. system. 5. The automotive audio system according to claim 4, wherein the acoustic driver information message is muted from an audio output signal transmitted to a speaker which is not disposed closest to the motor vehicle driver side. The audio system of claim 1, wherein the control unit includes an audio manager module for controlling balance settings of an amplifier connected to the speakers. 2. The automotive audio system according to claim 1, wherein the control unit includes adjusting means for allowing a user to adjust the balance setting of the sound source. The audio system of claim 1, wherein the control unit includes a user interface module that allows a user to adjust the balance setting of the sound source using a touch screen display. 9. The automotive audio system of claim 8, wherein the user interface module generates a balance setting graphical user interface on the touch screen display that allows a user to adjust the balance setting. 2. The automotive audio system according to claim 1, wherein the balance settings for each sound source are stored in the control unit. The system of claim 1, wherein the sound source comprises a navigation system, tuner, remote terminal, compact disc player, digital video disc player, MP3 player, radio data service tuner, television, satellite radio, internet radio, cassette player and text-to-speech system. The audio system for automobiles which is selected from the sound source group containing. A computer program product for an automotive audio system, Computer readable program code for controlling a plurality of sound sources capable of generating a plurality of audio output signals; Computer readable program code that allows the user to set balance settings for multiple speakers per individual source using the user interface Computer program product for a car audio system comprising a. 13. The computer program product of claim 12, further comprising computer readable program code for audibly reproducing the audio output signal at the speaker based on individual balance settings for each sound source. 13. The computer program product of claim 12, wherein the at least one audio output signal comprises an acoustic driver information message generated from an individual sound source. 15. The computer program product of claim 14, wherein the respective sound source comprises a navigation system. 15. The computer program product of claim 14, wherein the balance setting generates the acoustic driver information message at a speaker closest to the driver side of the vehicle. 16. The computer program product of claim 15, wherein the balance setting weakens the audio output signal of a sound source other than the navigation system. 16. The computer program product according to claim 15, wherein said balance setting mutes audio output signals of sound sources other than said navigation system in the speaker closest to said motor vehicle driver's side. 13. The computer program product of claim 12, wherein the speaker comprises a set of front speakers and a set of rear speakers. 13. The computer program product of claim 12, further comprising computer readable program code for generating a graphical user interface on the display that allows the user to adjust the balance setting. 13. The system of claim 12, wherein the sound source comprises a navigation system, tuner, remote terminal, compact disc player, digital video disc player, MP3 player, radio data service tuner, television, satellite radio, internet radio, cassette player and text-to-speech system. A computer program product for an automotive audio system selected from the group of sound sources comprising. 13. The computer program product of claim 12, further comprising computer readable program code for setting the balance setting for each sound source based on a passenger segment. 23. The computer program product of claim 22, wherein the passenger section comprises a driver, shift driver, at least one child or at least one adult passenger. As a car audio system, A plurality of sound sources capable of generating a plurality of audio output signals; An amplifier connected to the sound source to receive an audio output signal generated by the sound source; A plurality of speakers connected to the amplifier; A head unit connected to the amplifier for controlling the balance setting of the speaker for each sound source generating the audio output signal, And the head unit generates a user interface for setting balance settings of each sound source. 25. The automotive audio system of claim 24, wherein the amplifier comprises a balance setting circuit controlled by the head unit. 25. The automotive audio system of claim 24, wherein the head unit includes a user interface module that allows a user to adjust balance settings of each sound source. 25. The automotive audio system of claim 24, wherein the user interface is generated on a touch screen display. 25. The automotive audio system of claim 24, wherein the head unit includes an audio manager module that controls the amplifier based on balance settings for individual sound sources. 25. The system of claim 24, wherein one sound source comprises a navigation system for generating an acoustic driver information message, wherein the balance setting is such that the acoustic driver information message can only be heard by individual speakers placed proximate to the driver side of the vehicle. An audio system for a car that is set to play. 30. The automotive audio system of claim 29, wherein the other sound source continues to operate on a predetermined number of other speakers that are not disturbed by the acoustic driver information message. The system of claim 24, wherein the sound source comprises a navigation system, tuner, remote terminal, compact disk player, digital video disk player, MP3 player, radio data service tuner, television, satellite radio, internet radio, cassette player and text-to-speech system. The audio system for automobiles which is selected from the sound source group containing. As a method of controlling balance settings in an automotive audio system, Generating a plurality of audio output signals from the plurality of sound sources; Transmitting an audio output signal of the sound source to an amplifier; Adjusting a balance setting for each sound source using a head unit connected to the amplifier; Reproducing the audio output signal in the speaker based on the balance setting for each sound source Balance setting control method of a car audio system comprising a. 33. The method of claim 32, wherein the balance setting for each sound source is adjusted by an occupant of the vehicle using a graphical user interface. 33. The method of claim 32, wherein the graphical user interface includes vertical and horizontal scroll bars to adjust the balance settings. 34. The method of claim 33 wherein the graphical user interface is generated on a touch screen display in the vehicle. 33. The method of claim 32 wherein the respective audio output signal comprises an acoustic driver information message generated by the navigation system. 37. The method of claim 36, wherein the balance setting is set to reproduce the acoustic driver information message in a speaker selected by the driver. 33. The system of claim 32, wherein the sound source comprises a navigation system, tuner, remote terminal, compact disc player, digital video disc player, MP3 player, radio data service tuner, television, satellite radio, internet radio, cassette player and text-to-speech system. Balance setting control method for a car audio system that is selected from the group of sound sources. As a car audio system, A plurality of sound sources connected to the amplifier; A control unit connected to the amplifier; A passenger section selection module disposed in the control unit to select a passenger section; A user interface module arranged in the control unit to adjust balance settings of a plurality of speakers for the selected passenger segment based on individual sound sources generating an audio output signal Automotive audio system comprising a. 40. The automotive audio system of claim 39, further comprising an audio manager module for controlling the amplifier to audibly reproduce the audio output signal from a predetermined number of speakers based on the balance setting for each sound source. 40. The automotive audio system of claim 39, wherein the passenger segment selection module generates a balance setting graphical user interface used to adjust balance settings of the sound source. 40. The automotive audio system of claim 39, wherein the passenger section is selected from a passenger section group including a driver section, a shift driver section, a rear seat passenger section and a children section. As a method of controlling balance settings in an automotive audio system, Selecting a passenger segment; Adjusting a balance setting of at least one sound source for the passenger segment; Reproducing an audio output signal based on the balance setting for each sound source Balance setting control method of a car audio system comprising a. 44. The method of claim 43, wherein the passenger segment is selected using a graphical user interface generated by a passenger segment selection module disposed in the control unit. 44. The method of claim 43, wherein the passenger section is selected from a group of passenger sections including a driver section, a shift driver section, a rear seat passenger section and a children section. A method of providing and selecting from a menu on a display in a car navigation system having a graphical user interface comprising a display and a selection device, the method comprising: A search step of searching a menu input set related to the menu, wherein each of the menu inputs represents at least one balance setting related to each sound source of a plurality of sound sources; A display step of displaying at least one balance setting associated with each sound source; Receiving a menu input selection signal indicative of a selection device pointing at a selected menu input related to a balance setting of the menu input set; An adjustment step of adjusting a balance setting related to a sound source indicated by the menu input selection signal in response to the menu input selection signal How to include. 47. The method of claim 46, wherein the display and selection device comprises a touch screen display. 48. The method of claim 47, wherein the horizontal and vertical scroll bars generated on the touch screen display adjust balance settings for each sound source. 47. The method of claim 46, further comprising a playback step of playing back audio output signals in a plurality of speakers based on balance settings provided for each sound source.