WO2002091714A2 - Dispositif radio mobile - Google Patents
Dispositif radio mobile Download PDFInfo
- Publication number
- WO2002091714A2 WO2002091714A2 PCT/JP2002/003546 JP0203546W WO02091714A2 WO 2002091714 A2 WO2002091714 A2 WO 2002091714A2 JP 0203546 W JP0203546 W JP 0203546W WO 02091714 A2 WO02091714 A2 WO 02091714A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display
- state
- unit
- lcd
- portable wireless
- Prior art date
Links
Classifications
-
- 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
-
- 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 wireless device provided with wireless communication means such as a portable telephone.
- wireless communication means such as a portable telephone.
- LCD liquid crystal display device
- the LCD display screen is white when each pixel is lit, and black when not lit.
- the color is white when all the RGB are lit and black when not lit. For this reason, the current consumption tends to increase as the number of lit portions such as white portions on the display screen increases.
- a portable wireless device for example, when a call is in progress, "on the phone" or the telephone number or name of the other party is displayed on the display screen. At this time, if black text is displayed on a white background on the display screen, the background that occupies most of the display screen will light up white, and only the small-area characters will be turned off and black, and the current consumption will increase. Will be lost.
- various power saving functions are provided in order to extend the life of the battery.However, the power consumption is increasing as the size of the display unit is increased, and further power saving in the display unit is achieved. Is desired.
- the present invention has been made in view of the above circumstances, and has as its object to provide a portable wireless device capable of reducing current consumption of the entire device including a display unit in a communication state.
- a portable wireless device includes a wireless communication unit that performs wireless communication, a display unit that displays an operation state of the device, and a non-lighting state in the display unit when the wireless communication unit is in a communication state. And a control unit for displaying a state in the color of the lighting state in the background colored in the state.
- the control unit displays a status display with white characters indicating the lighting state on a black background indicating the non-lighting state on the display unit. I will do it.
- control unit when in the communication state, performs a partial display in which only the area for performing the state display on the display unit is turned on and the other areas are displayed off. It shall be.
- the apparatus further comprises detection means for detecting that the device has approached the head of the user, wherein the control unit is configured to perform an entire operation on the display unit when the detection means detects the approach of the head.
- the display of a part of the area is turned off.
- the display unit displays the status in the color of the lighting state in the background of the color in the non-lighting state, for example, displays the status in white characters on the black background. Also, by performing the partial display in which only the area for displaying the status is turned on and the other areas are displayed off, the current consumption in the display unit is reduced, Power saving of the entire device is achieved. Also, it is detected that the device has approached the user's head. At this time, since the display is not visible during a call, it is considered unnecessary to display the status, and the display of all or a part of the display is turned off. As a result, the current consumption in the display unit is further reduced, and the power consumption of the entire device is reduced.
- FIG. 1 is an explanatory diagram showing an external configuration of the portable wireless device according to the first embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a functional configuration of the portable wireless device according to the first embodiment.
- FIG. 3 is an operation explanatory diagram showing a first example of LCD display in a call state in the present embodiment.
- FIG. 4 is an operation explanatory diagram showing a second example of LCD display in a call state in the present embodiment.
- FIG. 5 is an explanatory diagram showing an external configuration of a portable wireless device according to a second embodiment of the present invention.
- FIG. 6 is a block diagram showing a functional configuration of the portable wireless device according to the second embodiment.
- reference numerals 10 and 20 denote portable wireless devices
- 11 denotes a device main body
- 12 denotes an antenna
- 13 denotes a receiver
- 14 denotes a transmitter
- 15 denotes a liquid crystal display (LCD)
- 16 is an operation unit
- 17 is a wireless communication unit
- 18 and 24 are control units
- 19 is an LCD drive unit
- 22 is a sensor.
- FIG. 1 is an explanatory diagram showing an external configuration of a portable wireless device according to a first embodiment of the present invention
- FIG. 2 is a block diagram showing a functional configuration of the portable wireless device according to the first embodiment.
- a mobile phone used for voice communication in a mobile communication system will be described as an example of a mobile wireless device.
- This mobile phone is a mobile phone system such as PDC, IS-95, IMT2000 (W-CDMA, etc.), PH It is applicable to mobile terminals such as the s (registered trademark) system.
- the portable wireless device 10 includes an antenna 12 for wireless communication, a receiving unit 13 such as a speaker, a transmitting unit 14 such as a microphone, and a liquid crystal display device (LCD) 1 constituting a display unit. 5. It is provided with an operation unit 16 composed of a plurality of operation keys. Inside the device, a wireless communication unit 17 including an RF unit and baseband processing unit for performing wireless communication such as voice communication, a control unit 18 for performing various controls of the portable wireless device 10, and an LCD 15 An LCD drive unit 19 for driving the LCD is provided. The control unit 18 is connected to the wireless communication unit 17, the operation unit 16, and the shinji 0 drive unit 19, and performs operation control and screen display control relating to wireless communication.
- a wireless communication unit 17 including an RF unit and baseband processing unit for performing wireless communication such as voice communication
- a control unit 18 for performing various controls of the portable wireless device 10
- An LCD drive unit 19 for driving the LCD is provided.
- the control unit 18 is connected to the wireless communication unit 17, the operation unit 16, and the shi
- the receiving unit 13 and the transmitting unit 14 can receive and transmit the call to make a call.
- the audio signal input from the transmission section 14 is subjected to various signal processing such as encoding, modulation, and amplification in the wireless communication section 17 to be a transmission signal, which is transmitted from the antenna 12.
- the received signal received by the antenna 12 is subjected to various signal processing such as demodulation, decoding, and amplification in the wireless communication unit 17 to be an audio signal, which is output from the receiver 13.
- control unit 18 When the portable wireless device 10 is operating, the control unit 18 outputs a control signal to the LCD drive unit 19 to drive and control the LCD 15, and displays various statuses on the display screen of the LCD 15. . For example, the phone number and name of the other party of the call, the operating status such as when making or receiving a call, during a call, and the like, call time and call charge are displayed.
- FIG. 3 is an operation explanatory diagram showing a first example of an LCD display in a call state according to the present embodiment.
- the control of the control unit 18 and the LCD drive unit 19 causes the LCD 15 to have a black background as shown in FIG.
- the white text indicates that the call is in progress, such as "Talking" or "32 minutes 20 seconds", and indicates the talk time.
- this operation state display is not limited to only letters and numbers, It is also possible to display using symbols, images, and the like.
- the status is displayed in black characters on a white background.
- the background portion which occupies most of the area of the display screen, has a non-lighting color. Since the color becomes a certain black and the color of the lighting state becomes white in the character portion having a small area, the current consumption of the LCD 15 is reduced. This makes it possible to reduce the current consumption of the LCD 15 without deteriorating the visibility, at least in an operation state where the display is not important in the portable wireless device 10 such as in a call state. Current consumption can be reduced.
- FIG. 4 is an operation explanatory diagram showing a second example of LCD display in a call state in the present embodiment.
- a partial display for turning on the LCD display (called a partial display)
- a partial display Sometimes).
- the control unit 18 and the LCD drive unit 19 change the duty ratio of the drive current for driving the LCD 15 and turn on only a part of the LCD 15 display screen.
- Fig. 4 (A) only the area that displays "in a call” and "32 minutes and 20 seconds", that is, the two lines that display the call status, is turned on and the other areas ( Line) is turned off. Therefore, as shown in FIG. 4 (B), only the portion for displaying the status in LCD 15 is the ON region, and the other portions are the OFF region.
- the current consumption of the LCD 15 is further reduced, and the current consumption of the LCD 15 can be reduced without deteriorating the visibility. As a result, the current consumption of the entire device can be further reduced.
- FIG. 5 is an explanatory diagram illustrating an external configuration of a portable wireless device according to a second embodiment of the present invention
- FIG. 6 is a block diagram illustrating a functional configuration of the portable wireless device according to the second embodiment.
- the portable wireless device 20 of the second embodiment is a modification of the above-described first embodiment, and includes a sensor 22 that is a detecting unit that detects that the user's head is approaching. Turns on / off the display of LCD 15 based on the output of sensor 22 It is like that.
- Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and description thereof will be omitted.
- the sensor 22 is configured by, for example, a distance sensor using infrared rays, detects that the user's head has approached within a predetermined distance, and sends a detection output to the control unit 24.
- the control section 24 receives this detection output and outputs a control signal to the LCD drive section 19 to turn off all or part of the display screen of the LCD 15.
- the display screen of the LCD 15 cannot be viewed, so that the call state display is unnecessary. Therefore, in the present embodiment, it is detected that the user is in a call state by detecting the approach of the user's head, and the display of the LCD 15 is turned off when the call state cannot be viewed. As a result, the current consumption of the LCD 15 is reduced. This makes it possible to further reduce the current consumption of the LCD 15 without deteriorating the visibility, at least in an operation state in which the importance of display is low in the portable wireless device 20 such as in a call state. Current consumption can be reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
- Liquid Crystal Display Device Control (AREA)
- Telephone Set Structure (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0300212A GB2384400B (en) | 2001-04-27 | 2002-04-09 | Mobile radio device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001132234A JP2002330200A (ja) | 2001-04-27 | 2001-04-27 | 携帯無線装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002091714A2 true WO2002091714A2 (fr) | 2002-11-14 |
WO2002091714A3 WO2002091714A3 (fr) | 2006-04-20 |
Family
ID=18980272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/003546 WO2002091714A2 (fr) | 2001-04-27 | 2002-04-09 | Dispositif radio mobile |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030162570A1 (ja) |
JP (1) | JP2002330200A (ja) |
CN (1) | CN1640096A (ja) |
GB (1) | GB2384400B (ja) |
WO (1) | WO2002091714A2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100379310C (zh) * | 2003-07-16 | 2008-04-02 | 乐金电子(中国)研究开发中心有限公司 | 移动通信终端的数据显示方法 |
Families Citing this family (18)
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US7159194B2 (en) * | 2001-11-30 | 2007-01-02 | Palm, Inc. | Orientation dependent functionality of an electronic device |
US7113811B2 (en) | 2003-06-17 | 2006-09-26 | Agere Systems Inc. | System and method for conserving battery power in a mobile station |
KR20050022117A (ko) * | 2003-08-29 | 2005-03-07 | 엘지전자 주식회사 | 이동통신단말기의 절전장치 및 방법 |
US20050221791A1 (en) * | 2004-04-05 | 2005-10-06 | Sony Ericsson Mobile Communications Ab | Sensor screen saver |
KR100690824B1 (ko) * | 2005-08-22 | 2007-03-09 | 엘지전자 주식회사 | 유기el을 구비한 이동통신 단말기의 대기화면 표시장치및 방법 |
US7747293B2 (en) * | 2006-10-17 | 2010-06-29 | Marvell Worl Trade Ltd. | Display control for cellular phone |
JP5178045B2 (ja) * | 2007-04-26 | 2013-04-10 | 京セラ株式会社 | 携帯端末装置 |
CN101729679A (zh) * | 2008-10-31 | 2010-06-09 | 深圳富泰宏精密工业有限公司 | 显示装置及图像显示方法 |
KR20120032888A (ko) | 2010-09-29 | 2012-04-06 | 삼성전자주식회사 | 모바일 디바이스의 전력소모 감소 방법 및 장치 |
CN102004784A (zh) * | 2010-11-25 | 2011-04-06 | 北京播思软件技术有限公司 | 一种手持终端浏览器的节电方法 |
CN102143275A (zh) * | 2010-11-26 | 2011-08-03 | 华为终端有限公司 | 移动终端显示方法和移动终端 |
US8665214B2 (en) * | 2010-12-29 | 2014-03-04 | Qualcomm Incorporated | Extending battery life of a portable electronic device |
CN102762074A (zh) * | 2011-04-25 | 2012-10-31 | 昆山广兴电子有限公司 | 用于可携式电子装置的散热系统 |
CN102694925A (zh) * | 2012-06-11 | 2012-09-26 | 中山爱科数字家庭产业孵化基地有限公司 | 一种便携智能终端的省电显示装置和方法 |
CN104102337A (zh) * | 2013-04-08 | 2014-10-15 | 普雷森株式会社 | 用于确定电子装置和用户之间的接近度的方法及装置 |
CN104009996A (zh) * | 2014-06-04 | 2014-08-27 | 东北大学 | 一种多显示屏并行显示系统 |
CN105487631B (zh) * | 2014-09-19 | 2021-05-18 | 联想(北京)有限公司 | 一种信息处理方法及电子设备 |
CN104765437A (zh) * | 2015-04-24 | 2015-07-08 | 上海与德通讯技术有限公司 | 一种省电方法及省电系统 |
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JPH0515555U (ja) * | 1991-08-05 | 1993-02-26 | シヤープ株式会社 | 移動体通信機器 |
JP2001086215A (ja) * | 1999-09-14 | 2001-03-30 | Pioneer Electronic Corp | 電話機 |
JP2001111476A (ja) * | 1999-10-12 | 2001-04-20 | Denso Corp | 携帯電話 |
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US5881377A (en) * | 1996-08-29 | 1999-03-09 | Motorola, Inc. | Communication device and display blanking control method therefor |
JPH11239203A (ja) * | 1998-02-23 | 1999-08-31 | Canon Inc | 携帯型端末装置及びその照明制御方法 |
TW465122B (en) * | 1999-12-15 | 2001-11-21 | Semiconductor Energy Lab | Light-emitting device |
DE19962282A1 (de) * | 1999-12-23 | 2001-06-28 | Philips Corp Intellectual Pty | Stromsparschaltung mittels betriebszustandsabhängiger Ansteuerung einer Anzeigevorrichtung eines Endgeräts für Mobile Kommunikation |
JP4024444B2 (ja) * | 1999-12-27 | 2007-12-19 | 株式会社東芝 | 無線電話装置 |
-
2001
- 2001-04-27 JP JP2001132234A patent/JP2002330200A/ja active Pending
-
2002
- 2002-04-09 WO PCT/JP2002/003546 patent/WO2002091714A2/ja active Application Filing
- 2002-04-09 US US10/312,958 patent/US20030162570A1/en not_active Abandoned
- 2002-04-09 CN CNA028014332A patent/CN1640096A/zh active Pending
- 2002-04-09 GB GB0300212A patent/GB2384400B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0515555U (ja) * | 1991-08-05 | 1993-02-26 | シヤープ株式会社 | 移動体通信機器 |
JP2001086215A (ja) * | 1999-09-14 | 2001-03-30 | Pioneer Electronic Corp | 電話機 |
JP2001111476A (ja) * | 1999-10-12 | 2001-04-20 | Denso Corp | 携帯電話 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100379310C (zh) * | 2003-07-16 | 2008-04-02 | 乐金电子(中国)研究开发中心有限公司 | 移动通信终端的数据显示方法 |
Also Published As
Publication number | Publication date |
---|---|
GB0300212D0 (en) | 2003-02-05 |
CN1640096A (zh) | 2005-07-13 |
US20030162570A1 (en) | 2003-08-28 |
GB2384400B (en) | 2005-09-28 |
GB2384400A (en) | 2003-07-23 |
JP2002330200A (ja) | 2002-11-15 |
WO2002091714A3 (fr) | 2006-04-20 |
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