JPH07327004A - Portable terminal equipment - Google Patents
Portable terminal equipmentInfo
- Publication number
- JPH07327004A JPH07327004A JP6120102A JP12010294A JPH07327004A JP H07327004 A JPH07327004 A JP H07327004A JP 6120102 A JP6120102 A JP 6120102A JP 12010294 A JP12010294 A JP 12010294A JP H07327004 A JPH07327004 A JP H07327004A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- unit
- remaining amount
- section
- lighting time
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、携帯端末装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal device.
【０００２】[0002]
【従来の技術】近年、携帯端末装置は、益々発達し、利
用者も年々増加している。2. Description of the Related Art In recent years, mobile terminal devices have been developed more and more and the number of users has been increasing year by year.
【０００３】以下、図面を参照しながら従来の携帯端末
装置について説明を行う。図５は従来の携帯端末装置の
構成図であり、表示部１と、キー入力部２と、表示部１
やキー入力部２を照らすバックライト部３と、点灯時間
の管理を行うタイマー部４と、タイマー部４からのデー
タによりバックライト部３の制御を行いシステム全体を
制御する制御部９と、システム全体に電力を供給するバ
ッテリー７とで構成されている。A conventional portable terminal device will be described below with reference to the drawings. FIG. 5 is a configuration diagram of a conventional mobile terminal device, which includes a display unit 1, a key input unit 2, and a display unit 1.
And a backlight unit 3 for illuminating the key input unit 2, a timer unit 4 for managing the lighting time, a control unit 9 for controlling the backlight unit 3 based on data from the timer unit 4 and a system, and a system It is composed of a battery 7 for supplying electric power to the whole.
【０００４】以上のように構成された従来の携帯端末装
置について、以下にその動作を説明する。The operation of the conventional portable terminal device configured as described above will be described below.
【０００５】キー入力部２の電源投入キーを押して、シ
ステムにバッテリー７から電力を供給すると、制御部９
が表示部１やキー入力部２を照らすバックライト部３を
点灯させ、タイマー部４が点灯時間をカウントし、一定
時間経過すると制御部９がバックライト部３を消灯する
ように制御する。またキー入力部２から何かキー入力し
た場合、制御部９がバックライト部３を点灯させ、タイ
マー部４が点灯時間をカウントし、一定時間経過すると
制御部９がバックライト部３を消灯するように制御す
る。When power is supplied from the battery 7 to the system by pressing the power-on key of the key input unit 2, the control unit 9
Turns on the backlight unit 3 that illuminates the display unit 1 and the key input unit 2, the timer unit 4 counts the lighting time, and the control unit 9 controls to turn off the backlight unit 3 after a lapse of a certain time. When any key is input from the key input unit 2, the control unit 9 turns on the backlight unit 3, the timer unit 4 counts the lighting time, and the control unit 9 turns off the backlight unit 3 after a lapse of a certain time. To control.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記し
た従来の携帯端末装置では、バックライト部に消費され
る電力は大きく、バッテリー消耗の原因となるという問
題点を有していた。However, in the above-mentioned conventional portable terminal device, there is a problem that the power consumed in the backlight portion is large and causes the battery to be consumed.
【０００７】本発明は上記課題を解決し、バックライト
部の点灯時間を短くすることで、バッテリーの消耗を軽
減することが可能な携帯端末装置を提供することを目的
とする。It is an object of the present invention to solve the above problems and to provide a portable terminal device capable of reducing battery consumption by shortening the lighting time of the backlight unit.
【０００８】[0008]
【課題を解決するための手段】この目的を達成するため
に、本発明は、表示部と、キー入力部と、表示部やキー
入力部を照らすバックライト部と、点灯時間の管理を行
うタイマー部と、バッテリーの残量に応じてバックライ
ト部の点灯時間を設定する設定テーブルと、バッテリー
の残量に応じてバックライト部の点灯時間を制御しシス
テム全体を制御する制御部と、システム全体に電力を供
給するバッテリーと、段階的な閾値によってバッテリー
の残量の検知を行うバッテリー残量検知部とを備え、バ
ッテリーの残量に応じてバックライト部の点灯時間を設
定し、バッテリーの残量が少なくなると通常の点灯時間
より短い時間でバックライト部を点灯させる携帯端末装
置であり、さらに少なくとも２つ以上のＬＥＤに代表さ
れる表示部と、キー入力部と、表示部やキー入力部を照
らすバックライト部と、点灯時間の管理を行うタイマー
部と、バッテリーの残量に応じてバックライト部の点灯
時間を設定する設定テーブルと、バッテリーの残量に応
じてバックライト部の点灯個数を制御しシステム全体を
制御する制御部と、システム全体に電力を供給するバッ
テリーと、段階的な閾値によってバッテリーの残量の検
知を行うバッテリー残量検知部とを備え、バッテリーの
残量に応じてバックライト部の点灯個数を設定し、バッ
テリーの残量が少なくなると、通常点灯させる箇所より
も少ない箇所を点灯させる携帯端末装置である。In order to achieve this object, the present invention provides a display unit, a key input unit, a backlight unit for illuminating the display unit and the key input unit, and a timer for managing the lighting time. Section, a setting table that sets the lighting time of the backlight unit according to the remaining battery level, a control unit that controls the lighting time of the backlight unit according to the remaining battery level and controls the entire system, and the entire system It is equipped with a battery that supplies power to the battery and a battery level detector that detects the remaining battery level with a stepwise threshold.The backlight lighting time is set according to the remaining battery level, and the remaining battery level is set. A portable terminal device that lights a backlight unit in a shorter time than a normal lighting time when the amount decreases, and further includes a display unit represented by at least two or more LEDs, and a key. The input unit, the backlight unit that illuminates the display unit and the key input unit, the timer unit that manages the lighting time, the setting table that sets the lighting time of the backlight unit according to the remaining battery power, and the remaining battery power. A control unit that controls the number of backlight units that are turned on according to the amount of power and controls the entire system, a battery that supplies power to the entire system, and a battery remaining amount detection unit that detects the remaining amount of the battery with a stepwise threshold value. And a number of backlight units to be turned on according to the remaining amount of the battery, and when the remaining amount of the battery is low, the portable terminal device is turned on to light fewer places than the places to be normally turned on.
【０００９】[0009]
【作用】本発明はこのように構成したことにより、タイ
マーの動作をバッテリー残量によって制御することがで
きる。With the above construction of the present invention, the operation of the timer can be controlled by the remaining battery level.
【００１０】[0010]
【実施例】以下、本発明の実施例について、図面を参照
しながら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１は、本発明の第１の実施例における携
帯端末装置の構成図であり、表示部１と、キー入力部２
と、表示部１やキー入力部２を照らすバックライト部３
と、点灯時間の管理を行うタイマー部４と、バッテリー
７の残量に応じてバックライト部３の点灯時間を設定し
た設定テーブル５と、バッテリー７の残量に応じてバッ
クライト部３の点灯時間を制御しシステム全体を制御す
る制御部６と、システム全体に電力を供給するバッテリ
ー７と、段階的な閾値によってバッテリー７の残量の検
知を行うバッテリー残量検知部８とで構成されている。FIG. 1 is a block diagram of a portable terminal device according to a first embodiment of the present invention, which is a display unit 1 and a key input unit 2.
And a backlight unit 3 for illuminating the display unit 1 and the key input unit 2.
And a timer unit 4 for managing the lighting time, a setting table 5 in which the lighting time of the backlight unit 3 is set according to the remaining amount of the battery 7, and the lighting of the backlight unit 3 according to the remaining amount of the battery 7. It is composed of a control unit 6 that controls the time and controls the entire system, a battery 7 that supplies power to the entire system, and a battery remaining amount detection unit 8 that detects the remaining amount of the battery 7 by a stepwise threshold value. There is.
【００１２】以上のように構成された本発明の第１の実
施例の携帯端末装置について、以下にその動作を説明す
る。The operation of the portable terminal device of the first embodiment of the present invention configured as described above will be described below.
【００１３】キー入力部２の電源投入キーを押して、シ
ステムにバッテリー７から電力を供給すると、制御部６
が表示部１やキー入力部２を照らすバックライト部３を
点灯させ、バッテリー残量検知部８が段階的な閾値によ
ってバッテリー７の残量を検知し、制御部６に通知す
る。制御部６がバッテリー７の残量に応じたバックライ
ト部３の点灯時間を設定テーブル５から読み込み、タイ
マー部４が点灯時間をカウントし、バッテリー７の残量
に応じた設定時間を経過すると、制御部６が制御してバ
ックライト部３を消灯させる。また、キー入力部２から
何かキー入力した場合、制御部６が表示部１とキー入力
部２を照らすバックライト部３を点灯させ、タイマー部
４が点灯時間をカウントし、バッテリー７の残量に応じ
た設定時間経過すると、制御部６が制御してバックライ
ト部３を消灯させる。When power is supplied from the battery 7 to the system by pressing the power-on key of the key input unit 2, the control unit 6
Turns on the backlight unit 3 that illuminates the display unit 1 and the key input unit 2, and the battery remaining amount detection unit 8 detects the remaining amount of the battery 7 with a stepwise threshold value and notifies the control unit 6. When the control unit 6 reads the lighting time of the backlight unit 3 according to the remaining amount of the battery 7 from the setting table 5, the timer unit 4 counts the lighting time, and when the set time according to the remaining amount of the battery 7 elapses, The control unit 6 controls to turn off the backlight unit 3. When any key is input from the key input unit 2, the control unit 6 turns on the backlight unit 3 that illuminates the display unit 1 and the key input unit 2, the timer unit 4 counts the lighting time, and the remaining battery 7 remains. When the set time corresponding to the amount has elapsed, the control unit 6 controls to turn off the backlight unit 3.
【００１４】図２（ａ）に本発明の第１の実施例におけ
る携帯端末装置のバックライト部の点灯動作とタイマー
の動作を示すフローチャート、図２（ｂ）に本発明の第
１の実施例における携帯端末装置のバッテリー残量に対
する点灯時間を示す設定テーブルを示す。ステップ２０
で何かキー入力されると、ステップ２１でバックライト
部３を点灯させ、ステップ２２に進む。ステップ２２で
はバッテリー残量検知部８を動作させ、段階的な閾値に
よってバッテリー７の残量を検知し、ステップ２３に進
み、ステップ２３ではバッテリー７の残量に応じたバッ
クライト部３の点灯時間を設定テーブル５から読み込
み、読み込んだ点灯時間を設定時間Ｔに設定する。FIG. 2 (a) is a flow chart showing the lighting operation of the backlight unit and the operation of the timer of the portable terminal device in the first embodiment of the present invention, and FIG. 2 (b) is the first embodiment of the present invention. 5 is a setting table showing the lighting time with respect to the remaining battery power of the mobile terminal device in FIG. Step 20
When any key is input, the backlight unit 3 is turned on in step 21, and the process proceeds to step 22. In step 22, the battery remaining amount detection unit 8 is operated, the remaining amount of the battery 7 is detected by a stepwise threshold value, the process proceeds to step 23, and in step 23, the lighting time of the backlight unit 3 according to the remaining amount of the battery 7 Is read from the setting table 5, and the read lighting time is set to the set time T.
【００１５】次に計数工程（ステップ２４）に進む。計
数工程ではステップ２３で設定された点灯時間ｔをカウ
ントアップするまで計数を行い、計数を終了すると、ス
テップ２５ではバックライト部３を消灯させる。Next, the process proceeds to the counting step (step 24). In the counting process, counting is performed until the lighting time t set in step 23 is counted up, and when the counting is completed, in step 25, the backlight unit 3 is turned off.
【００１６】図３は、本発明の第２の実施例の携帯端末
装置の構成図であり、少なくとも２つ以上のＬＥＤ（li
ght-emitting diode・発光ダイオード）等により成る表
示部１と、キー入力部２と、表示部１やキー入力部２を
照らすバックライト部１２と、点灯時間の管理を行うタ
イマー部４と、バッテリー７の残量に応じてバックライ
ト部１２の点灯個数を設定した設定テーブル１０と、バ
ッテリー７の残量に応じてバックライト部１２の点灯個
数を制御しシステム全体を制御する制御部１１と、シス
テム全体に電力を供給するバッテリー７と、段階的な閾
値によってバッテリー７の残量の検知を行うバッテリー
残量検知部８とで構成されている。FIG. 3 is a block diagram of a portable terminal device according to a second embodiment of the present invention, in which at least two or more LEDs (li
ght-emitting diode), a key input unit 2, a backlight unit 12 for illuminating the display unit 1 and the key input unit 2, a timer unit 4 for managing lighting time, and a battery. A setting table 10 in which the number of lights of the backlight unit 12 is set according to the remaining amount of the battery 7, and a control unit 11 which controls the number of lights of the backlight unit 12 according to the remaining amount of the battery 7 and controls the entire system. It is composed of a battery 7 that supplies electric power to the entire system, and a battery remaining amount detection unit 8 that detects the remaining amount of the battery 7 by a stepwise threshold value.
【００１７】以上のように構成された本発明の第２の実
施例の携帯端末装置について、以下にその動作を説明す
る。The operation of the portable terminal device of the second embodiment of the present invention configured as above will be described below.
【００１８】キー入力部２の電源投入キーを押して、シ
ステムにバッテリー７から電力を供給すると、制御部６
が表示部１やキー入力部２を照らすバックライト部１２
を点灯させ、バッテリー残量検知部８が段階的な閾値に
よってバッテリー７の残量を検知し、制御部１１に通知
する。制御部１１がバッテリー７の残量に応じたバック
ライト部１２の点灯個数を設定テーブル１０から読み込
み、表示部１やキー入力部２を照らすバックライト部１
２をバッテリー７の残量に応じた点灯個数分点灯させ、
タイマー部４が点灯時間をカウントし、一定時間経過す
ると、制御部１１が制御してバックライト部１２を消灯
させる。また、キー入力部２から何かキーを入力した場
合、制御部１１が表示部１とキー入力部２を照らすバッ
クライト部１２をバッテリー７の残量に応じたバックラ
イト部１２の点灯個数分点灯させ、タイマー部４が点灯
時間をカウントし、一定時間経過すると、制御部１１が
制御してバックライト部１２を消灯させる。When power is supplied from the battery 7 to the system by pressing the power-on key of the key input unit 2, the control unit 6
The backlight unit 12 that illuminates the display unit 1 and the key input unit 2
Is lit, and the battery remaining amount detection unit 8 detects the remaining amount of the battery 7 with a stepwise threshold and notifies the control unit 11. The control unit 11 reads from the setting table 10 the number of backlight units 12 to be turned on according to the remaining amount of the battery 7, and illuminates the display unit 1 and the key input unit 2.
2 is lit according to the remaining amount of the battery 7,
The timer unit 4 counts the lighting time, and when a certain time has elapsed, the control unit 11 controls to turn off the backlight unit 12. When any key is input from the key input unit 2, the control unit 11 illuminates the display unit 1 and the key input unit 2 with the backlight units 12 corresponding to the number of the backlight units 12 according to the remaining amount of the battery 7. The light is turned on, the timer unit 4 counts the lighting time, and when a certain time has elapsed, the control unit 11 controls to turn off the backlight unit 12.
【００１９】図４（ａ）に本発明の第２の実施例におけ
る携帯端末装置のバックライト部の点灯動作とタイマー
の動作を示すフローチャート、図４（ｂ）に本発明の第
２の実施例における携帯端末装置のバッテリー残量に対
する点灯個数を示す設定テーブルを示す。ステップ３０
で何かキー入力されると、ステップ３１ではバッテリー
残量検知部８を動作させ、段階的な閾値によってバッテ
リー７の残量を検知し、ステップ３２に進み、ステップ
３２ではバッテリー７の残量に応じたバックライト部１
２の点灯個数を設定テーブル１０から読み込み、それら
を点灯させる。FIG. 4A is a flowchart showing the lighting operation of the backlight unit and the operation of the timer of the portable terminal device in the second embodiment of the present invention, and FIG. 4B is the second embodiment of the present invention. 5 shows a setting table indicating the number of lights in the portable terminal device with respect to the remaining battery level. Step 30
If any key is input, the battery remaining amount detection unit 8 is operated in step 31, the remaining amount of the battery 7 is detected by a stepwise threshold value, the process proceeds to step 32, and the remaining amount of the battery 7 is detected in step 32. Compliant backlight unit 1
The number of lights to be turned on is read from the setting table 10 and turned on.
【００２０】次に計数工程（ステップ３３）に進む。計
数工程では一定の設定時間Ｔをカウントアップするまで
計数を行い、計数を終了すると、ステップ３４ではバッ
クライト部１２を消灯させる。Next, the procedure goes to the counting step (step 33). In the counting step, counting is performed until the fixed set time T is counted up, and when the counting is completed, the backlight unit 12 is turned off in step 34.
【００２１】[0021]
【発明の効果】以上の説明から明らかなように、本発明
は、バッテリーの残量が少ない場合に、バックライト部
に消費される電力を軽減し、バッテリーの消耗を軽減す
ことができ、使用時間の著しい延長が可能になるという
特段の効果を奏することができる。As is apparent from the above description, according to the present invention, when the battery level is low, the power consumed by the backlight unit can be reduced and the battery consumption can be reduced. A special effect that the time can be remarkably extended can be achieved.
【図１】本発明の第１の実施例における携帯端末装置の
構成図FIG. 1 is a configuration diagram of a mobile terminal device according to a first embodiment of the present invention.
【図２】（ａ）は本発明の第１の実施例における携帯端
末装置のバックライト部の点灯動作とタイマーの動作を
表すフローチャート （ｂ）は本発明の第１の実施例における携帯端末装置の
バッテリー残量に対する点灯時間を示す設定テーブルを
示す図FIG. 2A is a flowchart showing a lighting operation of a backlight unit and an operation of a timer of the mobile terminal device according to the first embodiment of the present invention, and FIG. 2B is a mobile terminal device according to the first embodiment of the present invention. Of setting table showing lighting time for remaining battery level
【図３】本発明の第２の実施例における携帯端末装置の
構成図FIG. 3 is a configuration diagram of a mobile terminal device according to a second embodiment of the present invention.
【図４】（ａ）は本発明の第２の実施例における携帯端
末装置のバックライト部の点灯動作とタイマーの動作を
表すフローチャート （ｂ）は本発明の第２の実施例における携帯端末装置の
バッテリー残量に対する点灯個数を示す設定テーブルを
示す図FIG. 4A is a flowchart showing a lighting operation of a backlight unit and an operation of a timer of the mobile terminal device according to the second embodiment of the present invention, and FIG. 4B is a mobile terminal device according to the second embodiment of the present invention. Showing a setting table showing the number of lights for each battery remaining
【図５】従来の携帯端末装置の構成図FIG. 5 is a configuration diagram of a conventional mobile terminal device.
１ 表示部 ２ キー入力部 ３，１２ バックライト部 ４ タイマー部 ５，１０ 設定テーブル ６，１１ 制御部 ７ バッテリー ８ バッテリー残量検知部 1 display section 2 key input section 3,12 backlight section 4 timer section 5,10 setting table 6,11 control section 7 battery 8 battery level detector
Claims (2)
記キー入力部を照らすバックライト部と、点灯時間の管
理を行うタイマー部と、バッテリーの残量に応じて前記
バックライト部の点灯時間を設定する設定テーブルと、
バッテリーの残量に応じて前記バックライト部の点灯時
間を制御しシステム全体を制御する制御部と、システム
全体に電力を供給するバッテリーと、段階的な閾値によ
って前記バッテリーの残量の検知を行うバッテリー残量
検知部とを備え、前記バッテリーの残量に応じて前記バ
ックライト部の点灯時間を設定し、前記バッテリーの残
量が少なくなると通常の点灯時間より短い時間で前記バ
ックライト部を点灯させることを特徴とする携帯端末装
置。1. A display unit, a key input unit, a backlight unit for illuminating the display unit and the key input unit, a timer unit for managing lighting time, and the backlight unit according to the remaining battery level. Setting table to set the lighting time of,
A control unit that controls the lighting time of the backlight unit according to the remaining amount of the battery to control the entire system, a battery that supplies power to the entire system, and a threshold value that detects the remaining amount of the battery. A battery remaining amount detection unit is provided, and the lighting time of the backlight unit is set according to the remaining amount of the battery, and when the remaining amount of the battery is low, the backlight unit is turned on in a time shorter than the normal lighting time. A mobile terminal device characterized by the above.
表示部と、キー入力部と、前記表示部や前記キー入力部
を照らすバックライト部と、点灯時間の管理を行うタイ
マー部と、バッテリーの残量に応じて前記バックライト
部の点灯時間を設定する設定テーブルと、バッテリーの
残量に応じて前記バックライト部の点灯個数を制御しシ
ステム全体を制御する制御部と、システム全体に電力を
供給するバッテリーと、段階的な閾値によって前記バッ
テリーの残量の検知を行うバッテリー残量検知部とを備
え、前記バッテリーの残量に応じて前記バックライト部
の点灯個数を設定し、前記バッテリーの残量が少なくな
ると、通常点灯させる箇所よりも少ない箇所を点灯させ
ることを特徴とする携帯端末装置。2. A display unit represented by at least two or more LEDs, a key input unit, a backlight unit for illuminating the display unit and the key input unit, a timer unit for managing lighting time, and a battery. Setting table that sets the lighting time of the backlight unit according to the remaining amount of the battery, a control unit that controls the number of the backlight units that are lit according to the remaining amount of the battery, and controls the entire system; And a battery remaining amount detecting unit that detects the remaining amount of the battery by a stepwise threshold value, and sets the number of the backlight units to be turned on according to the remaining amount of the battery. The mobile terminal device is characterized in that, when the remaining amount of the battery becomes low, the number of the areas that are normally lighted is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6120102A JPH07327004A (en) | 1994-06-01 | 1994-06-01 | Portable terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6120102A JPH07327004A (en) | 1994-06-01 | 1994-06-01 | Portable terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07327004A true JPH07327004A (en) | 1995-12-12 |
Family
ID=14777976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6120102A Pending JPH07327004A (en) | 1994-06-01 | 1994-06-01 | Portable terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07327004A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040035465A (en) * | 2002-10-22 | 2004-04-29 | 삼성전자주식회사 | Apparatus and method of changing the sound level by checking battery |
| KR100538622B1 (en) * | 2002-12-10 | 2005-12-22 | 주식회사 팬택앤큐리텔 | Method for warning/holding power of battery |
| US7124313B1 (en) | 1999-09-21 | 2006-10-17 | Nec Corporation | Data processing device and method of controlling power consumption in back-light in data processing device |
| KR100703659B1 (en) * | 2005-12-20 | 2007-04-06 | 엘지전자 주식회사 | Apparatus for controlling of battery saving in portable audio player and method thereof |
| JP2008053629A (en) * | 2006-08-28 | 2008-03-06 | Yazaki Corp | Led driving device |
| JP2009244772A (en) * | 2008-03-31 | 2009-10-22 | Yamatake Corp | Liquid crystal display |
| JP2014120316A (en) * | 2012-12-17 | 2014-06-30 | Kawaju Sharyo Techno Kk | Luminaire, and illumination system |
| JP2014220064A (en) * | 2013-05-07 | 2014-11-20 | アール・ビー・コントロールズ株式会社 | Led lighting fixture |
-
1994
- 1994-06-01 JP JP6120102A patent/JPH07327004A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124313B1 (en) | 1999-09-21 | 2006-10-17 | Nec Corporation | Data processing device and method of controlling power consumption in back-light in data processing device |
| US7770043B2 (en) | 1999-09-21 | 2010-08-03 | Nec Corporation | Data processing device and method of controlling power consumption in back-light in data processing device |
| KR20040035465A (en) * | 2002-10-22 | 2004-04-29 | 삼성전자주식회사 | Apparatus and method of changing the sound level by checking battery |
| KR100538622B1 (en) * | 2002-12-10 | 2005-12-22 | 주식회사 팬택앤큐리텔 | Method for warning/holding power of battery |
| KR100703659B1 (en) * | 2005-12-20 | 2007-04-06 | 엘지전자 주식회사 | Apparatus for controlling of battery saving in portable audio player and method thereof |
| JP2008053629A (en) * | 2006-08-28 | 2008-03-06 | Yazaki Corp | Led driving device |
| JP2009244772A (en) * | 2008-03-31 | 2009-10-22 | Yamatake Corp | Liquid crystal display |
| JP2014120316A (en) * | 2012-12-17 | 2014-06-30 | Kawaju Sharyo Techno Kk | Luminaire, and illumination system |
| JP2014220064A (en) * | 2013-05-07 | 2014-11-20 | アール・ビー・コントロールズ株式会社 | Led lighting fixture |
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