WO2003092250A1 - Mobile terminal device - Google Patents
Mobile terminal device Download PDFInfo
- Publication number
- WO2003092250A1 WO2003092250A1 PCT/JP2003/004917 JP0304917W WO03092250A1 WO 2003092250 A1 WO2003092250 A1 WO 2003092250A1 JP 0304917 W JP0304917 W JP 0304917W WO 03092250 A1 WO03092250 A1 WO 03092250A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive
- driving
- display
- terminal device
- display unit
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/605—Portable telephones adapted for handsfree use involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
- H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a portable terminal device including a liquid crystal display unit such as a portable telephone and a portable information terminal (PDA).
- a portable terminal device including a liquid crystal display unit such as a portable telephone and a portable information terminal (PDA).
- a liquid crystal display unit such as a portable telephone
- PDA portable information terminal
- the user When making a voice call using such a mobile communication terminal device, the user puts a receiver provided with a receiver against his / her ear to listen to the voice of the other party, and uses a microphone to talk to the other party. Is uttered to the transmitter provided with. Also, when browsing e-mail and other data and various information, the user should hold the housing away from the body and view various information such as characters and images displayed on the display unit.
- a portable communication terminal device is generally provided with a liquid crystal display unit having a liquid crystal display as a display unit.
- a glass panel or the like provided on the front may vibrate and generate noise depending on a driving method and a driving frequency.
- vibration noise of the liquid crystal display and resonance noise of the housing have been reduced. It is more likely to occur.
- a glass panel or the like provided on the front may vibrate and generate noise depending on the driving method and the driving frequency.
- the possibility of generating noise increases with the miniaturization and thinning of the device and the display of high image quality.
- vibration noise in the liquid crystal display unit ⁇ resonance noise in the housing disturbs the call. May be caused.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a portable terminal device capable of ensuring both visibility of a display unit and suppression of noise during a call using a receiver and a microphone. Is to provide. Invention disclosure>
- a portable terminal device is a portable terminal device having a portable device housing, a display means for displaying a device operation, and a sound output in a state where the device housing is close to a user's head. Or a drive control means for judging a case where a voice input operation is being performed and changing a drive operation of the display means.
- a voice communication means including a wireless communication means; wherein the drive control means is capable of holding the apparatus housing away from a user's head during a voice call operation by the voice communication means, and enabling a voice communication. It is characterized in that it is determined whether or not the hands-free device is used, and when the hands-free device is not used, at least one of a driving method and a driving frequency of the display means is changed.
- the device housing is close to the user's head based on the use of the hands-free device during the call operation by the voice communication means, and the driving operation such as the driving method and the driving frequency is performed.
- the driving operation such as the driving method and the driving frequency is performed.
- the apparatus further includes audio recording means for recording audio information
- the drive control means includes During the recording or reproduction operation by the voice recording means, it is determined whether or not a hands-free device capable of talking by separating the device housing from the user's head is used, and when the hands-free device is not used. It is characterized in that at least one of a driving method and a driving frequency of the display means is changed.
- the device housing is close to the user's head by the presence or absence of the hands-free device during the recording or reproduction operation by the voice recording means, and the driving method, the driving frequency, etc.
- the driving operation of the display device it is possible to suppress vibration noise, resonance noise, and the like due to driving of the display means during recording or reproduction operation.
- drive the high-quality display so as not to change the drive operation and ensure visibility. Becomes possible.
- a sensor unit for detecting that the device housing has approached the head of the user is provided, and the drive control unit detects a proximity state of the head based on a detection output of the sensor unit. In this case, at least one of the driving method and the driving frequency of the display means is changed.
- the apparatus housing it is determined whether or not the apparatus housing is close to the user's head based on the detection output of the sensor means, and by changing the driving operation such as the driving method and the driving frequency, Vibration noise, resonance noise, etc., caused by driving the display means are suppressed, preventing the effects of noise even when the user uses the device housing close to the head during a call operation, recording or playback operation, etc. It becomes possible.
- a portable terminal device is a portable terminal device having a portable device housing, wherein a display means for displaying a device operation, and a driving operation of the display means based on a call start operation. And a drive control means for changing. According to the above configuration, by changing the driving operation such as the driving method and the driving frequency based on the call start operation, it is possible to suppress vibration noise, resonance noise, and the like caused by driving the display means during the call operation.
- FIG. 1 is a block diagram showing a configuration of a main part of a portable terminal device according to a first embodiment of the present invention. It is a lip chart,
- FIG. 2 is a flowchart showing main operations of the mobile phone according to the first embodiment.
- FIG. 3 is a flowchart showing main operations of the mobile phone according to the second embodiment of the present invention.
- FIG. 4 is a block diagram showing a configuration of a main part of a mobile terminal device according to a third embodiment of the present invention.
- FIG. 5 is a flowchart showing main operations of the mobile phone according to the third embodiment.
- 11 is a speech circuit
- 12 is a transmission / reception part
- 13 is a receiver
- 14 is a microphone
- 15 is an antenna
- 16 is a control part
- 16 is a control part
- 17 is a memory part
- 18 is operation.
- Unit, 19 is a display unit
- 20 is a hands-free device
- 51 is a sensor.
- FIG. 1 is a block diagram showing a configuration of a main part of the mobile terminal device according to the first embodiment of the present invention.
- a description will be given by exemplifying a mobile phone which is a mobile station terminal of a mobile communication system as a mobile terminal device.
- the mobile phone includes a communication circuit 11 for converting a voice signal for performing a voice call and a transmission / reception unit 12 for performing modulation of a transmission signal and demodulation of a reception signal for performing wireless communication.
- a communication circuit 11 for converting a voice signal for performing a voice call
- a transmission / reception unit 12 for performing modulation of a transmission signal and demodulation of a reception signal for performing wireless communication.
- a receiver 13 for receiving and a microphone 14 for transmitting are connected to the communication circuit 11, and an antenna 15 for transmitting and receiving communication radio waves is connected to the transmitting and receiving unit 12.
- the mobile phone has a control unit (corresponding to a drive control unit) 16 for controlling each unit, a storage unit 17 for storing various setting data and telephone directory data, and various operation inputs.
- An operation unit 18 having key buttons and the like for performing the operation, and a display unit (corresponding to a display means) 19 constituted by a liquid crystal display for displaying an operation state of the apparatus are provided.
- Data transmission is performed between the control unit 16 and the transmission / reception unit 12, the storage unit 17, the operation unit 18, and the display unit 19.
- mobile phones include earphones and microphones. Etc. can be connected is constituted handsfree device 2 0, and summer as a housing by using the hands-free equipment 2 0 can calls to be apart from the head (audio in the mobile phone
- the speech circuit 11 converts the voice signal input to the microphone 14 into a transmission signal, converts the received signal into a voice signal, and outputs the voice signal to the receiver 13.
- the section 12 modulates the transmission signal and demodulates the reception signal under the control of the control section 16, and modulates the transmission signal and the reception signal exchanged with the base station via the antenna 15. Send and receive.
- the storage unit 17 has a function of a voice recording unit.
- a glass panel or the like provided on the front of the display unit 19 may vibrate to generate noise depending on a driving method and a driving frequency.
- the vibration noise of the display unit 19 and the resonance noise of the housing are remarkable. May be felt.
- the driving operation such as the driving method and the driving frequency of the display unit 19 is changed to perform display. Vibration noise of the part 19 ⁇ Resonance noise of the housing is suppressed.
- driving with less noise is performed with emphasis on acoustic characteristics, and noise due to the liquid crystal display is suppressed.
- high-quality driving is performed with an emphasis on the optical characteristics of the displayed image, and visibility is improved.
- FIG. 2 is a flowchart showing main operations of the mobile phone according to the first embodiment.
- a hands-free operation is performed. It determines whether the receiver 13 and the microphone 14 are used depending on whether or not one device 20 is connected, and changes the driving operation such as the driving method and the driving frequency.
- step S21 When a call operation such as on-hook is performed in step S21, it is determined in step S22 whether a hands-free device 20 including an earphone or a microphone is connected, and the hands-free device 20 is not connected. In this case, the operation proceeds to step S23 to change the drive operation.
- the driving operation at least one of the driving method and the driving frequency is changed.
- the hands-free device 20 is connected, the process proceeds to step S24, and the driving operation is not changed and is left as it is.
- One-line inversion drive has high image quality, but resonance noise may occur during driving.Therefore, when using the receiver 13 and microphone 14 during a call, etc., priority is given to sound quality and frame inversion drive is used. Switch.
- the frequency may be increased in order to suppress a flicking force on the display screen due to a change in the driving method.
- the resonance frequency can be reduced by lowering the driving frequency in one-line inversion driving or the like, only the driving frequency may be changed.
- the driving frequency should be increased to the extent that resonance noise does not occur to maintain visibility.
- step S25 a call is started in step S25. Then, in step S26, it is determined whether a key input operation has been performed. If a character input operation such as a memo of character information or another key input operation has been performed during a call, the process proceeds to step S28. Drive the drive operation such as the drive method and drive frequency back to the original. If there is no key input operation, a call ending operation such as off-hook or the like is performed in step S27, and the call is ended. Then, the process proceeds to step S28, and the driving operation is restored.
- a character input operation such as a memo of character information or another key input operation has been performed during a call
- step S28 Drive the drive operation such as the drive method and drive frequency back to the original. If there is no key input operation, a call ending operation such as off-hook or the like is performed in step S27, and the call is ended. Then, the process proceeds to step S28, and the driving operation is restored.
- the driving voltage may be changed in order to prevent image quality deterioration. For example, by lowering the driving voltage, the contrast / density of the display screen is reduced, and crosstalk, etc., in which black portions of the display screen are seen in the vertical direction, is suppressed.
- the screen design may be changed in order to prevent the image quality from deteriorating when the driving method is changed. For example, the display color in the display screen is changed, and the intermediate color in which the frit is noticeable is changed to white, black, or the basic color of RGB to enhance the visibility.
- step S21 when the call operation in step S21 is performed, the driving operation in step S23 may be automatically changed. In this case, hands-free judgment is not required.
- the hands-free device when the hands-free device is not connected at the time of talking on the mobile phone, the user uses the receiver and the microphone of the mobile phone main body with the housing in contact with the head. Assuming that they are talking, they change the driving operation such as the driving method and driving frequency.
- the driving operation such as the driving method and driving frequency.
- the driving method and driving frequency that prioritize image quality are used. Can be maintained. Therefore, it is possible to achieve both high image quality display and noise suppression according to the operation mode.
- FIG. 3 is a flowchart showing main operations of the mobile phone according to the second embodiment of the present invention.
- the receivers 13 and 13 of the main body depend on whether or not the hands-free device 20 is connected as in the first embodiment.
- the device configuration and other operations are the same as in the first embodiment, and a description thereof will not be repeated.
- step S32 If a recording operation or a playback operation is performed using a memo or the like in step S31, it is determined in step S32 whether the hands-free device 20 is connected. If the hands-free device 20 is not connected, Proceeding to step S33, the driving method such as the driving method and the driving frequency is changed as in the first embodiment. On the other hand, when the hands-free device 20 is connected, the process proceeds to step S34, and the driving operation is not changed and is left as it is. Next, recording or playback is started in step S35. Then, in step S36, when the recording or playback is terminated by operating the memo key or the like to end the recording or playback, in step S37 the drive operation such as the drive method and drive frequency is restored. I do.
- the user when performing a voice recording or playback operation during a call or standby of the mobile phone, when the hands-free device is not connected, the user places the housing on the head.
- the driving operation such as the driving method and the driving frequency is changed.
- vibration noise and resonance noise due to driving of the liquid crystal display unit can be suppressed by using the driving method and the driving frequency that prioritize sound quality.
- high-quality display can be performed by using the drive method and drive frequency that prioritize image quality, ensuring both visibility when viewing the display screen and suppressing noise during recording and playback. it can.
- FIG. 4 is a block diagram showing a configuration of a main part of a mobile terminal device according to a third embodiment of the present invention.
- a sensor corresponding to a sensor means 51 for detecting that the head of the user has approached is provided to determine whether to change the driving operation. This is an example in which the determination is made.
- Other configurations and operations are the same as those in the first embodiment, and a description thereof will not be repeated.
- the sensor 51 includes a proximity sensor that detects the approach of the user's head and the contact of the ears, a photo sensor that detects the brightness of a dark state or the like due to the approach of the head, and the like. Is output to the control unit 16.
- FIG. 5 is a flowchart showing main operations of the mobile phone according to the third embodiment.
- a call operation such as an on-hook operation is performed in step S41
- a call is started in step S42.
- step S43 a detection signal is output from the sensor 51 and the sensor is turned on, and when it is detected that the user's head is approaching, the mobile phone body is held in a state where the user touches the housing to the head. It is determined that the receiver and the microphone are used, and the process proceeds to step S44 to change the driving operation such as the driving method and the driving frequency as in the first embodiment.
- the process proceeds to step S45 and the driving operation is not changed and is left as it is.
- step S46 if the detection signal from the sensor 51 stops and the sensor is turned off, and if the user's head is no longer detected, or if the sensor is off from the beginning, the user's head is It is determined that the user is away from the body, and the process proceeds to step S48 to restore the driving operation such as the driving method and the driving frequency. If the detection output of the sensor 51 remains sensor-on, the call ends such as off-hook in step S47 and the call ends, and then the process proceeds to step S48 to return the driving operation to the original state. To do.
- the driving operation such as the driving method and the driving frequency is changed by detecting the approach of the user's head by the sensor.
- vibration noise due to driving of the liquid crystal display unit ⁇ resonance noise is suppressed by using the driving method and driving frequency that prioritize sound quality. be able to.
- high-quality display can be performed by using the drive method and drive frequency that prioritize image quality. This makes it possible to both ensure visibility at the time and suppress noise during a call.
- a portable terminal device capable of ensuring both visibility of a display unit and suppression of noise during a call using a receiver and a microphone.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003235210A AU2003235210A1 (en) | 2002-04-24 | 2003-04-17 | Mobile terminal device |
DE60319216T DE60319216T2 (de) | 2002-04-24 | 2003-04-17 | Mobile endgeräteeinrichtung |
EP03723139A EP1499092B1 (en) | 2002-04-24 | 2003-04-17 | Mobile terminal device |
US10/512,269 US7248899B2 (en) | 2002-04-24 | 2003-04-17 | Portable terminal apparatus having an improved display drive controller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002122443A JP4125036B2 (ja) | 2002-04-24 | 2002-04-24 | 携帯端末装置 |
JP2002/122443 | 2002-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003092250A1 true WO2003092250A1 (en) | 2003-11-06 |
Family
ID=29267447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/004917 WO2003092250A1 (en) | 2002-04-24 | 2003-04-17 | Mobile terminal device |
Country Status (7)
Country | Link |
---|---|
US (1) | US7248899B2 (ja) |
EP (1) | EP1499092B1 (ja) |
JP (1) | JP4125036B2 (ja) |
CN (1) | CN1663224A (ja) |
AU (1) | AU2003235210A1 (ja) |
DE (1) | DE60319216T2 (ja) |
WO (1) | WO2003092250A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070075956A1 (en) * | 2004-11-04 | 2007-04-05 | Matsushita Electric Industrial Co., Ltd. | Mobile terminal apparatus |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7113811B2 (en) | 2003-06-17 | 2006-09-26 | Agere Systems Inc. | System and method for conserving battery power in a mobile station |
KR100619829B1 (ko) * | 2004-02-23 | 2006-09-13 | 엘지전자 주식회사 | 휴대단말기의 핸드프리부 제어장치 및 방법 |
JP2006145640A (ja) * | 2004-11-16 | 2006-06-08 | Nec Lcd Technologies Ltd | 表示装置 |
US7885690B2 (en) * | 2005-12-28 | 2011-02-08 | Toppoly Optoelectronics Corp. | Methods for driving devices capable of displaying images and processing audio messages |
TWI382743B (zh) * | 2008-07-31 | 2013-01-11 | Htc Corp | 手持裝置及其省電方法 |
JP4572975B2 (ja) * | 2008-09-26 | 2010-11-04 | 富士ゼロックス株式会社 | 画像入力検知装置及びプログラム |
JP2010141538A (ja) * | 2008-12-10 | 2010-06-24 | Toshiba Corp | 電子機器、及び表示制御方法 |
TWI404013B (zh) * | 2009-11-27 | 2013-08-01 | Acer Inc | 電子裝置與調整其畫素時脈頻率的方法 |
JP7289514B2 (ja) * | 2019-07-08 | 2023-06-12 | 株式会社オーディオテクニカ | 制御装置、プログラム及びマイクロホンシステム |
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- 2003-04-17 CN CN038147394A patent/CN1663224A/zh active Pending
- 2003-04-17 AU AU2003235210A patent/AU2003235210A1/en not_active Abandoned
- 2003-04-17 DE DE60319216T patent/DE60319216T2/de not_active Expired - Lifetime
- 2003-04-17 WO PCT/JP2003/004917 patent/WO2003092250A1/ja active IP Right Grant
- 2003-04-17 EP EP03723139A patent/EP1499092B1/en not_active Expired - Lifetime
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US20070075956A1 (en) * | 2004-11-04 | 2007-04-05 | Matsushita Electric Industrial Co., Ltd. | Mobile terminal apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2003319017A (ja) | 2003-11-07 |
EP1499092A4 (en) | 2005-06-22 |
US20050105715A1 (en) | 2005-05-19 |
DE60319216T2 (de) | 2008-05-29 |
JP4125036B2 (ja) | 2008-07-23 |
CN1663224A (zh) | 2005-08-31 |
AU2003235210A1 (en) | 2003-11-10 |
EP1499092B1 (en) | 2008-02-20 |
EP1499092A1 (en) | 2005-01-19 |
US7248899B2 (en) | 2007-07-24 |
DE60319216D1 (de) | 2008-04-03 |
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