JP2003110681A - Mobile phone - Google Patents
Mobile phoneInfo
- Publication number
- JP2003110681A JP2003110681A JP2001306251A JP2001306251A JP2003110681A JP 2003110681 A JP2003110681 A JP 2003110681A JP 2001306251 A JP2001306251 A JP 2001306251A JP 2001306251 A JP2001306251 A JP 2001306251A JP 2003110681 A JP2003110681 A JP 2003110681A
- Authority
- JP
- Japan
- Prior art keywords
- brightness
- unit
- mobile phone
- lighting
- main body
- 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 Function (AREA)
- Telephone Set Structure (AREA)
Abstract
(57)【要約】
【課題】カメラと照明装置を装備した上で、製造コスト
の不必要なアップや本体サイズの大型化を伴うことな
く、照明装置による電力浪費の抑止を図った携帯電話機
を提供する。
【解決手段】イメージセンサ１０と、表示部５と、操作
部４と、その表示部５と操作部４の少なくとも１つを照
明するＬＥＤ３と、制御部２と、を備え、イメージセン
サ１０が、撮影機能と明るさ検出機能とを兼ね備えてい
る。そして、制御部２が、イメージセンサ１０の明るさ
検出機能で変換取得した電気信号に基づき本体周辺の明
るさを認定し、その認定された明るさが暗いと判定され
た場合に、ＬＥＤ３を点灯するように制御する。
(57) [Problem] To provide a mobile phone equipped with a camera and a lighting device, which suppresses power consumption by the lighting device without unnecessarily increasing the manufacturing cost and increasing the size of the main body. provide. The image sensor includes an image sensor, a display unit, an operation unit, an LED for illuminating at least one of the display unit and the operation unit, and a control unit. It has both a shooting function and a brightness detection function. Then, the control unit 2 certifies the brightness around the main body based on the electric signal converted and acquired by the brightness detection function of the image sensor 10 and turns on the LED 3 when it is determined that the certified brightness is dark. To control.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、音声や文字や画像
等の通信情報を無線送受信する携帯電話機に関し、特
に、画像等を表示する表示部や、ユーザーにより操作さ
れる操作部が照明され得る携帯電話機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone that wirelessly transmits and receives communication information such as voice, characters and images, and in particular, a display unit for displaying images and an operating unit operated by a user can be illuminated. Regarding mobile phones.
【０００２】[0002]
【従来の技術】従来の携帯電話機は、使用される環境が
暗所であっても、ユーザーが容易に表示部や操作部を視
認できるように、通常、その表示部や操作部を照明する
バックライトのような照明装置を備えている。ただし、
照明装置は当然に電力を消費するため、その点灯状態を
必要最小限に抑えることが望ましい。そこで、電力の浪
費を抑止すべく、更に本体周辺の明るさを検出する光セ
ンサを備え、その光センサで検出された明るさに基づ
き、本体周辺が暗いと判定された場合にのみ、照明装置
を点灯させるように制御するものが種々提案されてい
る。2. Description of the Related Art Conventional mobile phones are usually equipped with a back light that illuminates the display unit or the operation unit so that the user can easily visually recognize the display unit or the operation unit even in a dark place. It is equipped with a lighting device such as a light. However,
Since the lighting device naturally consumes power, it is desirable to keep its lighting state to a necessary minimum. Therefore, in order to suppress the waste of power, an optical sensor is further provided for detecting the brightness around the main body, and only when it is determined that the surroundings of the main body are dark based on the brightness detected by the optical sensor. There have been various proposals for controlling to turn on.
【０００３】一方、近年では、携帯電話機の活用用途を
広げる目的で、音声や文字等のみならず、ユーザー自身
が撮影した画像データをも通信情報として通信できるよ
うに、撮影用のカメラを備えたものが種々提案されてい
るが、このようなカメラ付き携帯電話機においても、上
記した照明装置や光センサを備えることが、無論望まし
い。On the other hand, in recent years, for the purpose of expanding the application of mobile phones, a camera for photographing is provided so that not only voices and characters but also image data photographed by the user himself can be communicated as communication information. Although various devices have been proposed, it is, of course, desirable that such a camera-equipped mobile phone also be provided with the above-mentioned illumination device and optical sensor.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した従来
の手法では、光センサは明るさ検出に専用であるため、
カメラを備えた場合、そのカメラとは別個に光センサを
設けることになり、必要以上に製造コストのアップが生
じる。しかも、光センサの設置スペースを確保する必要
があるため、本体サイズの大型化を招いて特有の携帯性
を損ねるおそれがあり、これに対しての設計的な配慮が
欠かせないという問題もある。However, in the above-mentioned conventional method, since the optical sensor is dedicated to the brightness detection,
When the camera is provided, the optical sensor is provided separately from the camera, which unnecessarily increases the manufacturing cost. Moreover, since it is necessary to secure a space for installing the optical sensor, there is a possibility that the main body size becomes large and the portability peculiar to the main body is impaired, and that there is a problem in that design consideration for this is indispensable. .
【０００５】そこで、本発明は、上記の問題に鑑みてな
されたものであり、カメラと照明装置を装備した上で、
製造コストの不必要なアップや本体サイズの大型化を伴
うことなく、照明装置による電力浪費の抑止を図った携
帯電話機を提供することを目的とするものである。Therefore, the present invention has been made in view of the above problems, and is equipped with a camera and a lighting device.
An object of the present invention is to provide a mobile phone in which power consumption by an illumination device is suppressed without unnecessarily increasing the manufacturing cost and increasing the size of the main body.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明による携帯電話機は、光学情報を電気信号に
変換して取得する光学情報取得手段と、操作部と、表示
部と、その操作部と表示部の少なくとも１つを照明する
照明手段と、制御手段と、を備えた携帯電話機におい
て、光学情報取得手段は、被写体を撮影してその被写体
像に関する電気信号を取得する撮影機能と、本体周辺の
明るさを検出してその明るさに関する電気信号を取得す
る明るさ検出機能と、を兼ね備えており、制御手段は、
光学情報取得手段の明るさ検出機能における電気信号に
基づき本体周辺の明るさを認定し、その認定された明る
さが暗いと判定された場合に、照明手段を点灯するよう
に制御するようになっている。ここで、光学情報取得手
段は、ＣＣＤやＣ−ＭＯＳ等のイメージセンサが用いら
れ、カメラと光センサ両方の役割を果たすことになる。
なお、明るさの明暗の判定は、例えば、予め閾値を設定
しておきその閾値と比較することで足りる。In order to achieve the above object, a portable telephone according to the present invention is provided with an optical information acquisition means for converting optical information into an electric signal to acquire it, an operation section, a display section, and its operation. In a mobile phone including a lighting unit that illuminates at least one of the display unit and the display unit, and a control unit, the optical information acquisition unit has a shooting function of shooting a subject and acquiring an electrical signal related to the subject image. It has a brightness detection function that detects the brightness around the main body and acquires an electrical signal related to the brightness, and the control means
The brightness around the main body is certified based on the electric signal in the brightness detection function of the optical information acquisition means, and when it is determined that the certified brightness is dark, the lighting means is controlled to be turned on. ing. Here, an image sensor such as a CCD or a C-MOS is used as the optical information acquisition means, and serves as both a camera and an optical sensor.
It is sufficient to determine whether the brightness is bright or dark by, for example, setting a threshold value in advance and comparing it with the threshold value.
【０００７】また、例えば、本体周辺の明るさが薄暗い
ようなときには、全く暗いときと同様の輝度で照明手段
を点灯させなくとも、ユーザーは低い輝度で十分支障な
く操作部や表示部を視認できる。従って、本体周辺の明
るさに応じてユーザーが視認できる程度の輝度に照明手
段を点灯させればよいといえ、これはより電力浪費の抑
止につながることから、前記照明手段は、その点灯輝度
が多段階に調整可能になっており、前記制御手段は、認
定された明るさに対応して、前記照明手段の点灯輝度を
調整するように制御するようになっていることが好まし
い。Further, for example, when the brightness around the main body is dim, the user can visually recognize the operation section and the display section at low brightness without turning on the illumination means with the same brightness as when it is completely dark. . Therefore, it can be said that the illuminating means is turned on to a brightness that can be visually recognized by the user according to the brightness of the surroundings of the main body. This leads to more suppression of power consumption. It is preferable that adjustment is possible in multiple stages, and the control means controls so as to adjust the lighting brightness of the lighting means in accordance with the recognized brightness.
【０００８】更に、ユーザーの意図に応じて、照明が必
要なときに照明手段が作動すればよいので、前記操作手
段の所定操作によって前記制御手段の有効／無効が切替
可能になっていてもよい。Further, since it is sufficient that the lighting means is activated when lighting is required according to the user's intention, the control means may be enabled / disabled by a predetermined operation of the operating means. .
【０００９】[0009]
【発明の実施の形態】以下に、本発明の実施形態につい
て図面を参照しながら説明する。先ず、本発明の第１実
施形態について説明する。図１は第１実施形態の携帯電
話機の構成を表すブロック図が示されている。１はカメ
ラ、２は全体を制御する制御部、３はＬＥＤ、４は複数
の操作キーからなる操作部、５は液晶パネル等で構成さ
れ文字や画像等の様々な情報を表示する表示部、６は送
受信信号を変換制御する無線部、７は通信用のアンテ
ナ、８は送話用のマイク、９は受話用のレシーバであ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the mobile phone of the first embodiment. Reference numeral 1 is a camera, 2 is a control unit for controlling the whole, 3 is an LED, 4 is an operation unit including a plurality of operation keys, 5 is a display unit configured by a liquid crystal panel or the like for displaying various information such as characters and images, Reference numeral 6 is a radio unit for converting and controlling transmission / reception signals, 7 is an antenna for communication, 8 is a microphone for transmission, and 9 is a receiver for reception.
【００１０】カメラ１は、ＣＣＤやＣ−ＭＯＳ等のイメ
ージセンサ１０、焦点調節やズームを行うためのレンズ
等から構成されており、そのイメージセンサ１０は、光
Ｌを受けその光学情報を電気信号に変換し、制御部２に
送出する。ここで、光Ｌの光学情報としては、被写体像
に関するものと、明るさに関するものとがある。つま
り、カメラ１は、撮影機能としてのカメラの役割のみな
らず、本体周辺の明るさを検出する光センサとしての役
割も果たす。従って、個別に光センサを設ける必要はな
く、製造コストの不必要なアップや本体サイズの大型化
は生じない。The camera 1 is composed of an image sensor 10 such as a CCD or C-MOS, a lens for focus adjustment and zooming, etc. The image sensor 10 receives light L and outputs its optical information as an electric signal. To the control unit 2. Here, the optical information of the light L includes information about a subject image and information about brightness. That is, the camera 1 serves not only as a camera as a photographing function but also as an optical sensor that detects the brightness around the main body. Therefore, it is not necessary to separately provide an optical sensor, and unnecessary increase in manufacturing cost and increase in body size do not occur.
【００１１】制御部２は、ＣＰＵ１１とＲＯＭ１２とか
らなり、第１に、イメージセンサ１０から取得した被写
体像に関する電気信号をＣＰＵ１１で処理して、表示部
５に画像データとして送出する。また、第２に、詳細は
後述するが、ＣＰＵ１１で、イメージセンサ１０から取
得した明るさに関する電気信号Ｘを、予めＲＯＭ１２に
設定記憶された明暗に関する閾値Ｔと比較して、本体周
辺の明るさが明るいか暗いかを判定し、暗いと判定した
場合はＬＥＤ３を点灯し、一方、明るいと判定した場合
はＬＥＤ３を消灯するように制御する。The control unit 2 is composed of a CPU 11 and a ROM 12, and firstly, the CPU 11 processes an electric signal relating to a subject image obtained from the image sensor 10 and sends it to the display unit 5 as image data. Secondly, as will be described in detail later, the CPU 11 compares the electric signal X relating to the brightness acquired from the image sensor 10 with a threshold value T relating to the lightness and darkness previously set and stored in the ROM 12, and compares the brightness around the main body. Is determined to be bright or dark. If it is determined to be dark, the LED 3 is turned on, and if it is determined to be bright, the LED 3 is turned off.
【００１２】ＬＥＤ３は、操作部４や表示部５を照明す
るバックライトのような照明装置を構成しており、携帯
電話機の使用環境が暗所であっても、上記したその点灯
によって、ユーザーによる操作部４や表示部５の視認性
を向上させる。つまり、使用環境の明暗を問わず、操作
部４の誤操作や表示部５の誤認を防止することができ
る。The LED 3 constitutes an illuminating device such as a backlight for illuminating the operating section 4 and the display section 5. Even if the mobile phone is used in a dark place, the LED 3 can be turned on by the user. The visibility of the operation unit 4 and the display unit 5 is improved. That is, it is possible to prevent erroneous operation of the operation unit 4 and erroneous recognition of the display unit 5 regardless of whether the usage environment is bright or dark.
【００１３】操作部４は、電池からの電力供給のＯＮ／
ＯＦＦを司る電源キー、電子メール等の各種の情報を入
力するテンキー、通話の開始／終了を司る通話キー、表
示部５の表示内容や機能を切り替える多機能キー、カメ
ラ１による撮影を実行するシャッターキー等からなって
いる。なお、本実施形態では、操作部４の所定操作によ
って、制御部２におけるＬＥＤ３の点灯／消灯を制御す
る照明モードに切り替わるようになっている。つまり、
ユーザーの意図に応じて、照明モードに移行できる。The operation unit 4 is for turning on / off the power supply from the battery.
A power key for turning off, a numeric keypad for inputting various information such as e-mail, a call key for starting / ending a call, a multi-function key for switching display contents and functions of the display unit 5, a shutter for performing shooting by the camera 1. It consists of keys etc. In the present embodiment, a predetermined operation of the operation unit 4 switches to an illumination mode in which the LED 3 of the control unit 2 is controlled to be turned on / off. That is,
The lighting mode can be changed according to the user's intention.
【００１４】このような構成の携帯電話機によって、Ｌ
ＥＤ３が動作する様子について、図２を参照しながら説
明する。図２はＬＥＤの動作制御を表すフローチャート
が示されている。With the portable telephone having such a configuration, L
How the ED3 operates will be described with reference to FIG. FIG. 2 shows a flowchart showing the operation control of the LED.
【００１５】先ず、ユーザーにより操作部４が所定操作
されて照明モードに移行し、スタートする。ステップ＃
５で操作部４が操作されると、ＣＰＵ１１は、イメージ
センサ１０より明るさに関する電気信号Ｘを取得し（ス
テップ＃１０）、ＲＯＭ１２より閾値Ｔを読み出す（ス
テップ＃１５）。次いで、ステップ＃２０でＸ＞Ｔを満
たすか否か、すなわち、本体周辺の明るさが明るいか暗
いかを判定する。Ｘ＞Ｔを満たさない場合、すなわち、
本体周辺の明るさが暗いと判定した場合は、ステップ＃
２５でＬＥＤ３を点灯し、一方、Ｘ＞Ｔを満たす場合、
すなわち、本体周辺の明るさが明るいと判定した場合
は、ステップ＃３０でＬＥＤ３を消灯して、共にステッ
プ＃３５に進みタイマーを起動する。First, the user operates the operation unit 4 in a predetermined manner to shift to the illumination mode and start. Step #
When the operation unit 4 is operated in 5, the CPU 11 obtains the electric signal X relating to the brightness from the image sensor 10 (step # 10) and reads the threshold T from the ROM 12 (step # 15). Next, at step # 20, it is determined whether or not X> T is satisfied, that is, whether the brightness around the main body is bright or dark. When X> T is not satisfied, that is,
If it is determined that the brightness around the main unit is dark, step #
When LED3 is turned on at 25, while X> T is satisfied,
That is, when it is determined that the brightness around the main body is bright, the LED 3 is turned off in step # 30, and the process proceeds to step # 35 to activate the timer.
【００１６】そして、ステップ＃４０でタイマー満了前
に操作部４の操作がなされた場合、ステップ＃４５でタ
イマーをリセットし、ステップ＃３５に戻りタイマーを
再起動する。一方、ステップ＃４０でタイマー満了前に
操作部４の操作がなされない場合は、ステップ＃５０で
ＬＥＤ３を消灯して、ステップ＃５５でタイマーをリセ
ットし、照明モードの初期状態（ステップ＃５）に戻
る。If the operation unit 4 is operated before the timer expires in step # 40, the timer is reset in step # 45, and the process returns to step # 35 to restart the timer. On the other hand, if the operation unit 4 is not operated before the timer expires in step # 40, the LED 3 is turned off in step # 50, the timer is reset in step # 55, and the initial state of the illumination mode (step # 5). Return to.
【００１７】このように、本体周辺の明るさが暗いと判
定された場合にのみ、ＬＥＤ３を点灯するようになって
いるので、ＬＥＤ３による電力の浪費を抑止でき、電池
寿命の延命化につながる。As described above, since the LED 3 is turned on only when it is determined that the brightness around the main body is dark, it is possible to suppress the waste of electric power by the LED 3 and prolong the life of the battery.
【００１８】次に、本発明の第２実施形態について、図
３を参照しながら説明する。図３は第２実施形態の携帯
電話機の構成を表すブロック図が示されている。なお、
図中で図１と同じ名称の部分には同一の符号を付し、重
複する説明は省略する。Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the mobile phone of the second embodiment. In addition,
In the figure, parts having the same names as those in FIG. 1 are designated by the same reference numerals, and overlapping description will be omitted.
【００１９】第２実施形態の特徴は、第１実施形態にお
けるＬＥＤ３の点灯輝度を多段階に調整可能にした点に
あり、制御部２とＬＥＤ３との接続経路に電流制御回路
１３が設けられている。この電流制御回路１３は、制御
部２から入力される制御信号に基づいてＬＥＤ３に出力
する電流を調整する役割を果たす。The feature of the second embodiment resides in that the lighting brightness of the LED 3 in the first embodiment can be adjusted in multiple stages, and a current control circuit 13 is provided in the connection path between the control unit 2 and the LED 3. There is. The current control circuit 13 plays a role of adjusting a current output to the LED 3 based on a control signal input from the control unit 2.
【００２０】本実施形態では、実際上、ＲＯＭ１２に明
暗に関する複数の閾値Ｔ1，Ｔ2，・・・，Ｔn（この順に明
るさが明るくなるような値）を予め設定記憶させ、電流
制御回路１３には、その閾値Ｔ1，Ｔ2，・・・，Ｔn各々に
対応する電流値Ｉ1，Ｉ2，・・・，Ｉn（この順に電流値が
小さくなるような値）を予め設定記憶させてある。ＣＰ
Ｕ１１は、イメージセンサ１０から取得した明るさに関
する電気信号Ｘを、ＲＯＭ１２に設定記憶された閾値Ｔ
1，Ｔ2，・・・，Ｔnと比較照合し、いずれかの閾値を制御
信号として電流制御回路１３に送出する。そして、電流
制御回路１３は、その閾値（制御信号）に対応する電流
値Ｉ1，Ｉ2，・・・，Ｉnを選定して、その電流値の電流を
ＬＥＤ３に出力し、ＬＥＤ３は、その電流値に応じた輝
度で点灯することになる。つまり、明るさに関する電気
信号Ｘ、すなわち、本体周辺の明るさに応じた多段階の
輝度でＬＥＤ３を点灯させることができる。In the present embodiment, in practice, the ROM 12 is made to preset and store a plurality of thresholds T 1 , T 2 , ..., T n concerning brightness and darkness (values in which the brightness becomes brighter in this order), and the current control is performed. the circuit 13, the threshold T 1, T 2, · · ·, the current value I 1, I 2 corresponding to T n, respectively, · · ·, I n (values such as the current value in this order is small) It is set and stored in advance. CP
U11 is a threshold value T stored and stored in the ROM 12 for the electric signal X relating to the brightness acquired from the image sensor 10.
1 , T 2 , ..., T n are compared and collated, and one of the threshold values is sent to the current control circuit 13 as a control signal. Then, the current control circuit 13 selects current values I 1 , I 2 , ..., I n corresponding to the threshold value (control signal) and outputs the current having the current value to the LED 3, and the LED 3 The light is turned on with the brightness according to the current value. That is, the LED 3 can be turned on with a multi-level luminance according to the electric signal X relating to the brightness, that is, the brightness around the main body.
【００２１】例えば、Ｘ≦Ｔ1の場合は、ＣＰＵ１１は
制御信号として閾値Ｔ1を送出し、電流制御回路１３は
その閾値Ｔ1に対応する電流値Ｉ1をＬＥＤ３に出力す
る。この場合、本体周辺が極めて暗い状態であるので、
ユーザーによる操作部４や表示部５の視認性を格段に向
上させる必要があり、ＬＥＤ３は最も大きい電流値Ｉ1
の電流によって最も高い輝度で点灯することになる。[0021] For example, in the case of X ≦ T 1, CPU 11 sends out the thresholds T 1 as the control signal, the current control circuit 13 outputs a current value I 1 corresponding to the thresholds T 1 to LED 3. In this case, the area around the body is extremely dark,
It is necessary to significantly improve the visibility of the operation unit 4 and the display unit 5 by the user, and the LED 3 has the largest current value I 1
It will be turned on with the highest brightness by the current.
【００２２】また、Ｔn-1＜Ｘ≦Ｔnの場合は、ＣＰＵ１
１は制御信号として閾値Ｔnを送出し、電流制御回路１
３はその閾値Ｔnに対応する電流値ＩnをＬＥＤ３に出力
する。この場合、本体周辺が若干暗い程度の状態である
ので、ＬＥＤ３を殆ど点灯させなくともユーザーは操作
部４や表示部５を視認できることから、ＬＥＤ３は最も
小さい電流値Ｉnの電流によって最も低い輝度で点灯す
ることになる。When T n-1 <X ≦ T n , the CPU 1
1 sends a threshold value T n as a control signal, and the current control circuit 1
3 outputs the current value I n corresponding to the threshold value T n on the LED 3. In this case, since the body peripheral is slightly darker extent of the condition, without hardly turns on the LED3 since users can view the operation section 4 and display section 5, LED3 lowest luminance by a current of the smallest current value I n Will light up.
【００２３】また、Ｔn＜Ｘの場合は、本体周辺が明る
い状態であるので、ユーザーによる操作部４や表示部５
の視認性に対してＬＥＤ３の点灯は不要であることか
ら、ＣＰＵ１１から電流制御回路１３へは制御信号を送
出せず、ＬＥＤ３は消灯することになる。When T n <X, the periphery of the main body is in a bright state, so that the operation unit 4 and the display unit 5 operated by the user.
Since it is unnecessary to turn on the LED 3 for the visibility, the CPU 11 does not send a control signal to the current control circuit 13 and the LED 3 is turned off.
【００２４】このように本体周辺の明るさに応じてユー
ザーが視認できる程度の輝度にＬＥＤ３を点灯させるこ
とができるので、電力消費をより抑えることが可能とな
り、電力浪費の抑止に対して有利である。As described above, since the LED 3 can be turned on to a brightness that can be visually recognized by the user according to the brightness around the main body, it is possible to further suppress the power consumption, which is advantageous for suppressing the waste of power. is there.
【００２５】なお、本発明は上記の実施形態に限定され
ず、本発明の趣旨を逸脱しない範囲で、種々の変更が可
能である。例えば、操作部４や表示部５を照明できる限
り、ＬＥＤ３はどのようなものでも構わない。The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, any LED 3 may be used as long as it can illuminate the operation unit 4 and the display unit 5.
【００２６】[0026]
【発明の効果】以上説明した通り本発明によれば、光学
情報を電気信号に変換して取得する光学情報取得手段
と、操作部と、表示部と、その操作部と表示部の少なく
とも１つを照明する照明手段と、制御手段と、を備えた
携帯電話機において、光学情報取得手段は、被写体を撮
影してその被写体像に関する電気信号を取得する撮影機
能と、本体周辺の明るさを検出してその明るさに関する
電気信号を取得する明るさ検出機能と、を兼ね備えてお
り、制御手段は、光学情報取得手段の明るさ検出機能に
おける電気信号に基づき本体周辺の明るさを認定し、そ
の認定された明るさが暗いと判定された場合に、照明手
段を点灯するように制御するようになっているので、照
明手段による電力の浪費を抑止でき、電池寿命の延命化
が可能となる。しかも、光学情報取得手段が、カメラと
光センサ両方の役割を果たすことになるので、個別に光
センサを設ける必要がなくなり、製造コストの不必要な
アップや本体サイズの大型化を伴うことはない。As described above, according to the present invention, at least one of optical information acquisition means for converting optical information into an electric signal and acquiring it, an operation section, a display section, and the operation section and the display section. In a mobile phone provided with an illuminating means for illuminating the object and a control means, the optical information acquiring means detects a brightness of the surroundings of the main body and a shooting function of shooting a subject and acquiring an electric signal related to the subject image. It also has a brightness detection function that acquires an electrical signal related to its brightness, and the control means authenticates the brightness around the main body based on the electrical signal in the brightness detection function of the optical information acquisition means, and the approval When the determined brightness is determined to be dark, the lighting means is controlled so as to be turned on. Therefore, it is possible to prevent the lighting means from wasting electric power and prolong the battery life. Moreover, since the optical information acquisition means plays the role of both the camera and the optical sensor, it is not necessary to separately provide the optical sensor, and the manufacturing cost is not unnecessarily increased or the size of the main body is increased. .
【００２７】また、前記照明手段が、その点灯輝度が多
段階に調整可能になっており、前記制御手段が、認定さ
れた明るさに対応して、前記照明手段の点灯輝度を調整
するように制御するようになっていると、本体周辺の明
るさに応じてユーザーが視認できる程度の輝度に照明手
段を点灯させることができるので、電力浪費をより抑え
ることが可能となる。The lighting brightness of the lighting means can be adjusted in multiple stages, and the control means adjusts the lighting brightness of the lighting means in accordance with the certified brightness. With the control, the illuminating means can be turned on to a brightness that can be visually recognized by the user according to the brightness around the main body, so that it is possible to further suppress power consumption.
【００２８】更に、前記操作手段の所定操作によって前
記制御手段の有効／無効が切替可能になっていると、ユ
ーザーの意図に応じて、照明が必要なときに照明手段を
作動させることができる。Furthermore, if the control means can be switched between valid and invalid by a predetermined operation of the operating means, the lighting means can be operated when lighting is required according to the intention of the user.
【図１】 第１実施形態の携帯電話機の構成を示すブ
ロック図である。FIG. 1 is a block diagram showing a configuration of a mobile phone according to a first embodiment.
【図２】 ＬＥＤの動作制御を示すフローチャートで
ある。FIG. 2 is a flowchart showing operation control of LEDs.
【図３】 第２実施形態の携帯電話機の構成を示すブ
ロック図である。FIG. 3 is a block diagram showing a configuration of a mobile phone according to a second embodiment.
１ カメラ ２ 制御部 ３ ＬＥＤ ４ 操作部 ５ 表示部 ６ 無線部 ７ アンテナ ８ マイク ９ レシーバ １０ イメージセンサ １１ ＣＰＵ １２ ＲＯＭ １３ 電流制御回路 1 camera 2 control unit 3 LED 4 operation part 5 Display 6 radio section 7 antenna 8 microphone 9 receiver 10 image sensor 11 CPU 12 ROM 13 Current control circuit
Claims (3)
光学情報取得手段と、操作部と、表示部と、前記操作部
と前記表示部の少なくとも１つを照明する照明手段と、
制御手段と、を備えた携帯電話機において、 前記光学情報取得手段は、被写体を撮影してその被写体
像に関する電気信号を取得する撮影機能と、本体周辺の
明るさを検出してその明るさに関する電気信号を取得す
る明るさ検出機能と、を兼ね備えており、 前記制御手段は、前記光学情報取得手段の明るさ検出機
能における電気信号に基づき本体周辺の明るさを認定
し、その認定された明るさが暗いと判定された場合に、
前記照明手段を点灯するように制御することを特徴とす
る携帯電話機。1. An optical information acquisition unit for converting optical information into an electric signal and acquiring the electric signal, an operation unit, a display unit, and an illumination unit for illuminating at least one of the operation unit and the display unit.
In the mobile phone provided with a control unit, the optical information acquisition unit has a photographing function of photographing a subject and acquiring an electric signal related to the subject image, and detecting the brightness around the main body to obtain an electric signal related to the brightness. It has a brightness detection function of acquiring a signal, and the control means certifies the brightness of the main body periphery based on an electric signal in the brightness detection function of the optical information acquisition means, and the certified brightness Is determined to be dark,
A mobile phone characterized in that the lighting means is controlled to be turned on.
に調整可能になっており、前記制御手段は、認定された
明るさに対応して、前記照明手段の点灯輝度を調整する
ように制御することを特徴とする請求項１に記載の携帯
電話機。2. The lighting means can adjust the lighting brightness of the lighting means in multiple stages, and the control means adjusts the lighting brightness of the lighting means in accordance with the certified brightness. The mobile phone according to claim 1, which is controlled.
御手段の有効／無効が切替可能になっていることを特徴
とする請求項１又は２に記載の携帯電話機。3. The mobile phone according to claim 1, wherein the control means is enabled / disabled by a predetermined operation of the operation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001306251A JP2003110681A (en) | 2001-10-02 | 2001-10-02 | Mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001306251A JP2003110681A (en) | 2001-10-02 | 2001-10-02 | Mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003110681A true JP2003110681A (en) | 2003-04-11 |
Family
ID=19125919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001306251A Pending JP2003110681A (en) | 2001-10-02 | 2001-10-02 | Mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003110681A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2403096A (en) * | 2003-06-07 | 2004-12-22 | Matsushita Electric Industrial Co Ltd | Automatic lighting control for communication devices with a camera |
| KR100500669B1 (en) * | 2003-04-22 | 2005-07-12 | 주식회사 팬택앤큐리텔 | Circuit to emit light for controlling luminosity automatically |
| WO2006062694A3 (en) * | 2004-12-03 | 2006-11-02 | Motorola Inc | Multi-function device illumination control system and method |
| EP1783740A1 (en) * | 2003-08-05 | 2007-05-09 | Research In Motion Limited | Method for automatic backlight adjustment |
| US7532191B2 (en) | 2003-04-04 | 2009-05-12 | Lg Electronics Inc. | Apparatus, method and computer program product for controlling screen brightness of mobile terminal |
| US9157794B2 (en) | 2012-11-07 | 2015-10-13 | Sony Corporation | Imaging device and imaging method having saturation determination for an illuminance calculation |
| ES2724212A1 (en) * | 2018-03-02 | 2019-09-09 | Visionapp Solutions S L | METHOD IMPLEMENTED IN COMPUTER AND SYSTEM FOR THE PREVENTION OF THE VISION DETERIORATION CAUSED BY THE PROLONGED USE OF ELECTRONIC SCREENS IN LOW LIGHTING CONDITIONS. (Machine-translation by Google Translate, not legally binding) |
-
2001
- 2001-10-02 JP JP2001306251A patent/JP2003110681A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7532191B2 (en) | 2003-04-04 | 2009-05-12 | Lg Electronics Inc. | Apparatus, method and computer program product for controlling screen brightness of mobile terminal |
| KR100500669B1 (en) * | 2003-04-22 | 2005-07-12 | 주식회사 팬택앤큐리텔 | Circuit to emit light for controlling luminosity automatically |
| GB2403096A (en) * | 2003-06-07 | 2004-12-22 | Matsushita Electric Industrial Co Ltd | Automatic lighting control for communication devices with a camera |
| GB2403096B (en) * | 2003-06-07 | 2005-09-21 | Matsushita Electric Industrial Co Ltd | Automatic lighting control for communication devices with a camera. |
| EP1783740A1 (en) * | 2003-08-05 | 2007-05-09 | Research In Motion Limited | Method for automatic backlight adjustment |
| WO2006062694A3 (en) * | 2004-12-03 | 2006-11-02 | Motorola Inc | Multi-function device illumination control system and method |
| US9157794B2 (en) | 2012-11-07 | 2015-10-13 | Sony Corporation | Imaging device and imaging method having saturation determination for an illuminance calculation |
| US9671282B2 (en) | 2012-11-07 | 2017-06-06 | Sony Corporation | Imaging device and imaging method having an illuminance calculation unit calculating respective illuminances corresponding to digital signals |
| ES2724212A1 (en) * | 2018-03-02 | 2019-09-09 | Visionapp Solutions S L | METHOD IMPLEMENTED IN COMPUTER AND SYSTEM FOR THE PREVENTION OF THE VISION DETERIORATION CAUSED BY THE PROLONGED USE OF ELECTRONIC SCREENS IN LOW LIGHTING CONDITIONS. (Machine-translation by Google Translate, not legally binding) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100617716B1 (en) | Portable terminal and method for controlling backlight | |
| KR20030047754A (en) | Image Pick-up Device and Portable Electronic Device | |
| JP2002111801A (en) | Mobile telephone device | |
| JP2003110681A (en) | Mobile phone | |
| KR100613063B1 (en) | Illumination Detection Device and Method Using Image Sensor | |
| JP2000324238A (en) | Lighting device for mobile radio unit | |
| KR100581144B1 (en) | Mobile terminal and camera control method | |
| JP2005286523A (en) | Portable terminal device | |
| KR100325250B1 (en) | Translucency type lcd back light control device and method for camera telephone therefor | |
| KR20050004608A (en) | Method for controlling digital camera wherein adaptive light-emitting is performed | |
| US20070218859A1 (en) | Method for switching operation modes of a mobile communication apparatus | |
| JPWO2004054239A1 (en) | Electronic device and photographing method using the electronic device | |
| JP2004104245A (en) | Mobile terminal device | |
| JP2003289368A (en) | Mobile terminal and lighting method | |
| JP4002565B2 (en) | Portable terminal device and ambient environment detection method using portable terminal device | |
| JP2006146030A (en) | Electronic device and its control method | |
| JP2006324926A (en) | Portable terminal device and control method thereof | |
| JP2004354872A (en) | Portable electronic devices | |
| JP2003348211A (en) | Portable terminal and its notification method | |
| KR20070066668A (en) | Mobile communication terminal and control method thereof | |
| JP3966037B2 (en) | Mobile device | |
| KR20060035833A (en) | Mobile communication terminal for brightness control of flash | |
| JP2006279744A (en) | Communication terminal | |
| JP3896121B2 (en) | Portable terminal device and backlight control method thereof | |
| JP3997281B2 (en) | Mobile phone |