JP2003060744A - Portable device - Google Patents
Portable deviceInfo
- Publication number
- JP2003060744A JP2003060744A JP2001250548A JP2001250548A JP2003060744A JP 2003060744 A JP2003060744 A JP 2003060744A JP 2001250548 A JP2001250548 A JP 2001250548A JP 2001250548 A JP2001250548 A JP 2001250548A JP 2003060744 A JP2003060744 A JP 2003060744A
- Authority
- JP
- Japan
- Prior art keywords
- key
- unit
- illuminance sensor
- key illumination
- threshold value
- 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
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、携帯電話のキー照明を
オン・オフするための制御機能に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control function for turning on / off a key illumination of a mobile phone.
【０００２】[0002]
【従来の技術】従来の携帯電話の構成は図６のようにな
っている。図６に示すように、無線送受信を行うための
アンテナ（１）、送受信信号を変復調処理するための無
線部（２）、ユーザが操作を行うためのキー入力部であ
るキー操作部（６）、該キー操作部（６）を見易くする
ためのキー照明部（５）、操作のため必要な情報を表示
する表示部（３）、該表示部（３）は一般的には液晶パ
ネルで構成されており、該液晶パネルのためのバックラ
イトとしての表示用照明部（４）、音声信号を入力する
マイクロフォン（９）、マイクロフォン（９）より入力
された音声を増幅しＡ／Ｄ変換して符号化したり、また
デジタル音声データを復号してＤ／Ａ変換し増幅して、
スピーカ（８）より出力するための音声処理部（７）、
必要な情報を保持したり、各機能のためのプログラムソ
ース等を記憶しておくための記憶部（１０）、及び機器
全体の処理を制御する制御部（１１）で構成されてい
る。2. Description of the Related Art The structure of a conventional mobile phone is shown in FIG. As shown in FIG. 6, an antenna (1) for wireless transmission / reception, a wireless unit (2) for modulating / demodulating a transmission / reception signal, and a key operation unit (6) as a key input unit for a user to operate. , A key illumination unit (5) for making the key operation unit (6) easy to see, a display unit (3) for displaying information necessary for operation, and the display unit (3) is generally composed of a liquid crystal panel. The display illumination unit (4) as a backlight for the liquid crystal panel, the microphone (9) for inputting a sound signal, and the sound input from the microphone (9) are amplified and A / D converted. Encoding, decoding digital audio data, D / A converting and amplifying,
A voice processing unit (7) for outputting from a speaker (8),
A storage unit (10) for holding necessary information and storing a program source for each function and the like, and a control unit (11) for controlling the processing of the entire device.
【０００３】このような構成において、一般的に、キー
照明部（５）はＬＥＤなどで構成され、各キーの下に配
置されて下部からキーを照明している。また、制御部
（１１）は一般的にマイコン等で構成されている。In such a structure, generally, the key illumination section (5) is composed of an LED or the like, and is arranged under each key to illuminate the key from the bottom. The control unit (11) is generally composed of a microcomputer or the like.
【０００４】通常、携帯電話においてキー照明はキー操
作の度に点灯するため、メールやゲームなどキーを頻繁
に押す場合、電池の消耗が激しくなる。しかし、天気の
良い日の屋外や蛍光灯の下などの明るい場所では、キー
照明は点灯しているかどうか判別できない程度であり、
点灯が不必要な場合が多い。従って、照度センサーを取
り付け、ある照度以下の場合のみ、即ち暗い場所でのみ
点灯するような機能は知られている。In a mobile phone, the key illumination is normally turned on each time the key is operated, so that when the key is frequently pressed for mail, games, etc., the battery consumption becomes severe. However, on a sunny day outdoors or in a bright place such as under a fluorescent light, it is impossible to determine whether the key lighting is on,
Lighting is often unnecessary. Therefore, there is known a function of attaching an illuminance sensor and turning on only when the illuminance is below a certain illuminance, that is, only in a dark place.
【０００５】[0005]
【発明が解決しようとする課題】キー照明部（５）の点
灯が必要な時は、LEDなど素子のバラツキによる、得ら
れる照度のばらつきや、使用者の感じ方の個人差などの
要因により一様ではない。即ち、必ずしも上記照度セン
サーによる計測結果に関する閾値と、点灯の必要性とが
必ずしも一致するわけではなく、キー照明が点灯してほ
しい時に点灯せずにキーが押しにくかったり、点灯しな
くてもよいと感じている時に点灯して電池の消耗が早く
なってしまったりすることが多い。When it is necessary to turn on the key illuminator (5), it may be affected by factors such as variations in the obtained illuminance due to variations in elements such as LEDs and individual differences in how the user feels. Not like. That is, the threshold value related to the measurement result by the illuminance sensor and the necessity of lighting do not always match, and it is not necessary to turn on the key illumination when the key illumination is desired to be turned on or the key may not be turned on or may not be turned on. When it feels like this, it often turns on and the battery drains faster.
【０００６】[0006]
【課題を解決するための手段】本願発明は、上記問題に
鑑みなされたものであり、操作キーと操作キーを光らせ
るためにキー照明部と、周囲の照度を計測するための照
度センサー部と、キー照明部のオン／オフを制御する制
御部とを有し、該制御部において照度センサー部からの
出力を予め設定された閾値と比較し、その比較の結果、
照度センサー部からの出力が上記閾値以上であった場
合、キー照明部をオフに設定し、照度センサー部からの
出力が上記閾値未満であった場合、キー照明部をオフに
設定する携帯機器において、上記照度センサー部が、携
帯電話の使用者が携帯電話を握った状態で塞ぐことがで
きる位置に配されていることを特徴としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and includes an operation key, a key illumination unit for illuminating the operation key, and an illuminance sensor unit for measuring ambient illuminance, And a control unit for controlling ON / OFF of the key illumination unit, in which the output from the illuminance sensor unit is compared with a preset threshold value, and as a result of the comparison,
If the output from the illuminance sensor unit is above the threshold value, the key illumination unit is set to off, and if the output from the illuminance sensor unit is below the threshold value, the portable device that sets the key illumination unit to off The illuminance sensor section is arranged at a position where a user of the mobile phone can close the mobile phone while holding the mobile phone.
【０００７】さらに、上記照度センサー部が、キー操作
部と同一面内に配置されている事を特徴とする携帯機器
である。Furthermore, the illuminance sensor section is arranged in the same plane as the key operation section, which is a portable device.
【０００８】また、表示部を有し、上記照度センサー部
が、表示部と同一面内に配置されている事を特徴とする
携帯機器である。Further, the present invention is a portable device characterized in that it has a display section and the illuminance sensor section is arranged in the same plane as the display section.
【０００９】また、上記照度センサー部が、筐体の側面
に配置されている事を特徴とする携帯機器でもある。Further, it is also a portable device characterized in that the illuminance sensor section is arranged on the side surface of the housing.
【００１０】また、上記照度センサー部が、筐体の背面
に配置されている事を特徴とする携帯機器でもある。Also, the illuminance sensor section is a portable device characterized by being arranged on the back surface of the housing.
【００１１】さらに、上記照度センサー部が、周囲の照
度に応じた電圧を出力することを特徴とする携帯機器で
もある。Further, the illuminance sensor section also outputs a voltage according to the illuminance of the surroundings.
【００１２】一方、暗闇の中でしかキー照明がオンにな
らない様に上記閾値が、低く設定されることを特徴とす
る携帯機器でもある。On the other hand, the portable device is also characterized in that the threshold value is set low so that the key illumination is turned on only in darkness.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施例を、図面に
沿って具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings.
【００１４】本発明に係る携帯電話の実施例のブロック
図を、図１に示す。音声或いは非音声のデータを無線回
線を使用してアンテナ（１）で送受信を行う。受信され
るデータは無線部（２）にて復調の処理がなされる。復
調された信号は、制御部（１１）において、例えばPH
S、TDMAやCDMAなどの通信方式に応じた処理がなされ
る。通常の使用で、受信された音声信号は復調された
後、音声処理部（７）で復号されて、アナログ信号に変
換された後、スピーカ（８）から出力される。A block diagram of an embodiment of a mobile phone according to the present invention is shown in FIG. Voice or non-voice data is transmitted and received by the antenna (1) using a wireless line. The received data is demodulated by the wireless unit (2). The demodulated signal is sent to the control unit (11), for example, PH
Processing is performed according to the communication system such as S, TDMA, and CDMA. In normal use, the received audio signal is demodulated, then decoded by the audio processing unit (7), converted into an analog signal, and then output from the speaker (8).
【００１５】一方、マイクロフォン（９）を介して入力
された音声信号は増幅され、増幅された音声信号は、音
声処理部（７）においてデジタル信号に変換されて符号
化される。符号化された信号は、制御部（１１）におい
て、例えばPHS、TDMAやCDMAなどの通信方式に応じた信
号に変換され、無線部（２）にて変調される。変調され
た信号はアンテナ（１）を介して送信される。On the other hand, the voice signal input through the microphone (9) is amplified, and the amplified voice signal is converted into a digital signal in the voice processing section (7) and encoded. The encoded signal is converted by the control unit (11) into a signal according to a communication system such as PHS, TDMA or CDMA, and modulated by the wireless unit (2). The modulated signal is transmitted via the antenna (1).
【００１６】また、さらに外光の強さを計測するために
フォトセンサー（１２）が設けられている。フォトセン
サーは、外光に強さを電圧に変換し、該電圧を制御部
（１１）で監督することで外光の強さを計測することが
できる。Further, a photo sensor (12) is provided to measure the intensity of outside light. The photosensor can measure the intensity of external light by converting the intensity of external light into a voltage and supervising the voltage by the control unit (11).
【００１７】次に、図２に本発明による携帯電話のキー
照明機能を示すブロック図を示す。外光の強さを電圧に
変換するフォトセンサー（１２）とフォトセンサー（１
２）からの電圧を入力して外光の強さを検知できるAD端
子（２１）があり、キー照明を制御する制御部（１１）
を有している。Next, FIG. 2 is a block diagram showing the key illumination function of the portable telephone according to the present invention. Photo sensor (12) and photo sensor (1) that converts the intensity of external light into voltage
There is an AD terminal (21) that can detect the intensity of external light by inputting the voltage from 2), and a control unit (11) that controls the key illumination.
have.
【００１８】フォトセンサー（１２）に入る外光の強さ
によりフォトセンサー（１２）の出力電圧は変化するた
め、外光の強さ、即ち周囲の明るさを検知できる。この
出力電圧を制御部（１１）のAD端子（２１）に入力し、
制御部（１１）内で閾値を予め設定しておき、AD端子
（２１）への入力と該閾値を比較する。制御部（１１）
では、AD端子（２１）への入力が閾値以上である場合
は、周囲が明るいと判断してキー照明をオフにするため
の処理を行い、AD端子（２１）への入力が閾値未満であ
る場合は、周囲が暗いと判断してキー照明をオンにする
ための処理をする。この閾値の設定は、通常は、工場で
一律に設定されている。Since the output voltage of the photo sensor (12) changes depending on the intensity of the external light entering the photo sensor (12), the intensity of the external light, that is, the ambient brightness can be detected. This output voltage is input to the AD terminal (21) of the control unit (11),
The threshold value is set in advance in the control unit (11), and the input to the AD terminal (21) is compared with the threshold value. Control unit (11)
Then, if the input to the AD terminal (21) is greater than or equal to the threshold value, it is determined that the surroundings are bright and a process for turning off the key illumination is performed, and the input to the AD terminal (21) is less than the threshold value. In this case, it is determined that the surroundings are dark and the key illumination is turned on. The setting of this threshold value is normally set uniformly at the factory.
【００１９】さらに、制御部（１１）は、キー照明端子
（２２）を有し、キー照明端子（２２）がハイ（H）に
なると、キー照明端子（２２）に接続されているトラン
ジスタ（２３）がオンになり、キー用照明部（５）を構
成するLED（２４）に電流が流れて発光する。Further, the control section (11) has a key illumination terminal (22), and when the key illumination terminal (22) becomes high (H), a transistor (23) connected to the key illumination terminal (22). ) Is turned on, and a current flows through the LED (24) forming the key illumination unit (5) to emit light.
【００２０】周囲が明るい時、フォトセンサー（１２）
の電圧が高くなり、制御部（１１）は、AD端子（２１）
への入力電圧が閾値以上であると判断した場合、キー照
明端子（２２）をロー（L）に設定する。即ち、周囲が
明るいと判断され、キー照明端子（２２）がＬになるこ
とによって、トランジスタ（２３）がオフになり、ＬＥ
Ｄ（２４）に電流が流れないため、発光しない。従っ
て、キー用照明部（５）は、点灯しない。When the surroundings are bright, the photo sensor (12)
Becomes higher, the control unit (11) controls the AD terminal (21).
When it is determined that the input voltage to the key input terminal is equal to or higher than the threshold value, the key illumination terminal (22) is set to low (L). That is, it is determined that the surroundings are bright, and the key illumination terminal (22) becomes L, so that the transistor (23) is turned off and the LE
Since no current flows through D (24), it does not emit light. Therefore, the key illumination unit (5) does not light up.
【００２１】一方、周囲が暗い時、フォトセンサー（１
２）の電圧が低くなり、制御部（１１）は、AD端子（２
１）への入力電圧が閾値未満であると判断した場合、キ
ー照明端子（２２）をハイ（Ｈ）に設定する。即ち、周
囲が明るいと判断され、キー照明端子（２２）がＨにな
ることによって、トランジスタ（２３）がオンになり、
ＬＥＤ（２４）に電流が流れるため、発光する。従っ
て、キー用照明部（５）は、点灯する。On the other hand, when the surroundings are dark, the photo sensor (1
The voltage of 2) becomes low, and the control unit (11) controls the AD terminal (2
When it is determined that the input voltage to 1) is less than the threshold value, the key illumination terminal (22) is set to high (H). That is, it is determined that the surroundings are bright, and the key illumination terminal (22) becomes H, so that the transistor (23) is turned on,
Since a current flows through the LED (24), it emits light. Therefore, the key illumination unit (5) is turned on.
【００２２】このように、ＬＥＤ（２４）の発光がオン
／オフするためにキーの照明の点灯が制御できる。As described above, since the light emission of the LED (24) is turned on / off, the lighting of the key illumination can be controlled.
【００２３】次に、図３にフォトセンサーの配置位置に
関する第1の実施例を示す。図３（Ａ）は、折畳型携帯
電話機、図３（Ｂ）はストレート型携帯電話機の例を示
す。図３は、携帯電話を正面から見た図で、フォトセン
サー（１２）はキー操作部のある面内に設けることによ
って、使用者が携帯電話を握りながら、容易にフォトセ
ンサー（１２）を塞ぐことができる。フォトセンサー
（１２）が塞がれると、フォトセンサー（１２）に入る
外光が遮られるため、周囲が暗いと判断され、キー照明
が点灯する。即ち、周囲が暗いにも関わらずキー照明が
点灯しない場合に、キー照明をオンにすることができ
る。この場合、フォトセンサー（１２）を設ける位置は
表示と同一面内としても構わない。Next, FIG. 3 shows a first embodiment concerning the arrangement position of the photosensor. FIG. 3A shows an example of a folding type mobile phone, and FIG. 3B shows an example of a straight type mobile phone. FIG. 3 is a front view of the mobile phone. The photo sensor (12) is provided in a plane having a key operation unit so that the user can easily close the photo sensor (12) while holding the mobile phone. be able to. When the photo sensor (12) is blocked, external light entering the photo sensor (12) is blocked, so that it is determined that the surroundings are dark and the key illumination is turned on. That is, the key illumination can be turned on when the key illumination is not turned on despite the dark surroundings. In this case, the position where the photo sensor (12) is provided may be in the same plane as the display.
【００２４】次に、図４にフォトセンサーの配置位置に
関する第２の実施例を示す。図４（Ａ）は、折畳型携帯
電話機、図４（Ｂ）はストレート型携帯電話機の例を示
す。図４は、携帯電話を正面から見た図と右側面から見
た図で、フォトセンサー（１２）は携帯電話筐体の右側
面内に設けることによって、使用者が携帯電話を握りな
がら、容易にフォトセンサー（１２）を塞ぐことができ
る。フォトセンサー（１２）が塞がれると、フォトセン
サー（１２）に入る外光が遮られるため、周囲が暗いと
判断され、キー照明が点灯する。即ち、周囲が暗いにも
関わらずキー照明が点灯しない場合に、キー照明をオン
にすることができる。この場合、フォトセンサー（１
２）を携帯電話筐体の左側面に設けても構わない。Next, FIG. 4 shows a second embodiment concerning the arrangement position of the photosensor. FIG. 4A shows an example of a folding type mobile phone, and FIG. 4B shows an example of a straight type mobile phone. FIG. 4 is a front view and a right side view of the mobile phone. The photo sensor (12) is provided in the right side of the mobile phone housing so that the user can easily hold the mobile phone while holding it. The photo sensor (12) can be closed. When the photo sensor (12) is blocked, the external light entering the photo sensor (12) is blocked, so it is determined that the surroundings are dark, and the key illumination is turned on. That is, the key illumination can be turned on when the key illumination is not turned on despite the dark surroundings. In this case, the photo sensor (1
2) may be provided on the left side surface of the mobile phone casing.
【００２５】次に、図５にフォトセンサーの配置位置に
関する第３の実施例を示す。図５（Ａ）は、折畳型携帯
電話機、図５（Ｂ）はストレート型携帯電話機の例を示
す。図５は、携帯電話を正面から見た図と背面から見た
図で、フォトセンサー（１２）は携帯電話機の筐体の背
面に設けることによって、使用者が携帯電話を握りなが
ら、容易にフォトセンサー（１２）を塞ぐことができ
る。フォトセンサー（１２）が塞がれると、フォトセン
サー（１２）に入る外光が遮られるため、周囲が暗いと
判断され、キー照明が点灯する。即ち、周囲が暗いにも
関わらずキー照明が点灯しない場合に、キー照明をオン
にすることができる。図５（Ａ）の場合、フォトセンサ
ー（１２）の配置位置は、キー操作部の背面でも表示部
の背面でもどちらでも構わない。Next, FIG. 5 shows a third embodiment concerning the arrangement position of the photosensor. 5A shows an example of a foldable mobile phone, and FIG. 5B shows an example of a straight mobile phone. FIG. 5 is a front view and a rear view of the mobile phone. The photo sensor (12) is provided on the back surface of the housing of the mobile phone so that the user can easily take a photo while holding the mobile phone. The sensor (12) can be closed. When the photo sensor (12) is blocked, external light entering the photo sensor (12) is blocked, so that it is determined that the surroundings are dark and the key illumination is turned on. That is, the key illumination can be turned on when the key illumination is not turned on despite the dark surroundings. In the case of FIG. 5A, the arrangement position of the photo sensor (12) may be either on the back surface of the key operation unit or on the back surface of the display unit.
【００２６】上記のように、フォトセンサー（１２）を
配置し、キー照明オン／オフのための閾値をかなり低く
設定しておくことで、キー照明のオン／オフを使用者の
好みで点灯／消灯できるように調整することができる。As described above, by arranging the photo sensor (12) and setting the threshold value for turning on / off the key light to a considerably low value, turning on / off of the key light is turned on / off according to the user's preference. It can be adjusted so that it can be turned off.
【００２７】上記の実施例におけるフォトセンサー（１
２）の配置は、上記の実施例に限定されるものではな
く、使用者が携帯電話を握りながら塞ぐことができる位
置であれば如何なる場所であっても構わない。The photo sensor (1
The arrangement of 2) is not limited to the above-mentioned embodiment, but may be any place as long as the user can close the mobile phone while holding it.
【００２８】[0028]
【発明の効果】本発明を利用することによって、使用者
の好みに応じて、携帯電話のキー照明を点灯／消灯制御
が可能になった。さらに、キー照明オン／オフのための
閾値が低く設定され、少し暗くなっただけではキー照明
が点灯しないようになるため、消費電流を節約する事に
も有用である。By utilizing the present invention, it is possible to turn on / off the key illumination of the portable telephone according to the preference of the user. Further, the threshold value for turning on / off the key light is set low, and the key light does not turn on even if it is a little dark, which is useful for saving current consumption.
【図１】本発明のブロック図FIG. 1 is a block diagram of the present invention.
【図２】本発明のキー用照明部のブロック図FIG. 2 is a block diagram of a key illumination unit according to the present invention.
【図３】本発明の第1の実施例の外観図FIG. 3 is an external view of the first embodiment of the present invention.
【図４】本発明の第２の実施例の外観図FIG. 4 is an external view of a second embodiment of the present invention.
【図５】本発明の第３の実施例に外観図FIG. 5 is an external view of a third embodiment of the present invention.
【図６】従来技術のブロック図FIG. 6 is a block diagram of a conventional technique.
１ アンテナ ２ 無線部 ３ 表示部 ４ 表示用照明部 ５ キー用照明部 ６ キー操作部 ７ 音声処理部 ８ スピーカ ９ マイク １０ 記憶部 １１ 制御部 １２ フォトセンサー ２１ ＡＤ端子 ２２ キー用照明端子 ２３ トランジスタ ２４ ＬＥＤ 1 antenna 2 radio section 3 Display 4 Display lighting unit Illumination part for 5 keys 6 key operation part 7 Audio processing unit 8 speakers 9 microphone 10 memory 11 Control unit 12 Photo sensor 21 AD terminal 22 key lighting terminal 23 transistor 24 LED
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０５Ｂ 37/02 Ｈ０４Ｂ 7/26 Ｘ Ｆターム(参考） 3K073 AA83 BA28 CF13 CG02 CG06 CG16 CJ04 CJ17 CJ22 5K023 AA07 GG04 HH08 HH09 MM07 MM24 5K027 AA11 BB02 BB17 CC08 FF22 GG03 HH30 MM04 MM15 MM16 5K067 AA43 BB04 CC21 EE02 FF24 FF31 HH22 KK17 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H05B 37/02 H04B 7/26 XF term (reference) 3K073 AA83 BA28 CF13 CG02 CG06 CG16 CJ04 CJ17 CJ22 5K023 AA07 GG04 HH08 HH09 MM07 MM24 5K027 AA11 BB02 BB17 CC08 FF22 GG03 HH30 MM04 MM15 MM16 5K067 AA43 BB04 CC21 EE02 FF24 FF31 HH22 KK17
Claims (7)
ー照明部と、周囲の照度を計測するための照度センサー
部と、キー照明部のオン／オフを制御する制御部とを有
し、該制御部において照度センサー部からの出力を予め
設定された閾値と比較し、その比較の結果、照度センサ
ー部からの出力が上記閾値以上であった場合、キー照明
部をオフに設定し、照度センサー部からの出力が上記閾
値未満であった場合、キー照明部をオフに設定する携帯
機器において、 上記照度センサー部が、携帯電話の使用者が携帯電話を
握った状態で塞ぐことができる位置に配されていること
を特徴とする携帯機器。1. An operation key, a key illumination unit for illuminating the operation key, an illuminance sensor unit for measuring ambient illuminance, and a control unit for controlling ON / OFF of the key illumination unit, In the control unit, the output from the illuminance sensor unit is compared with a preset threshold value, and as a result of the comparison, if the output from the illuminance sensor unit is equal to or more than the threshold value, the key illumination unit is set to OFF, and the illuminance sensor is set. When the output from the unit is less than the threshold value, in the portable device in which the key illumination unit is set to off, the illuminance sensor unit is located at a position where the user of the mobile phone can close it while holding the mobile phone. A mobile device characterized by being distributed.
一面内に配置されている事を特徴とする請求項1に記載
の携帯機器。2. The mobile device according to claim 1, wherein the illuminance sensor section is arranged in the same plane as the key operation section.
表示部と同一面内に配置されている事を特徴とする請求
項1に記載の携帯機器。3. A display unit, wherein the illuminance sensor unit,
The mobile device according to claim 1, wherein the mobile device is arranged in the same plane as the display unit.
置されている事を特徴とする請求項1に記載の携帯機
器。4. The mobile device according to claim 1, wherein the illuminance sensor unit is arranged on a side surface of a housing.
置されている事を特徴とする請求項1に記載の携帯機
器。5. The mobile device according to claim 1, wherein the illuminance sensor unit is arranged on the back surface of the housing.
じた電圧を出力することを特徴とする請求項１乃至５に
記載の携帯機器。6. The mobile device according to claim 1, wherein the illuminance sensor section outputs a voltage according to ambient illuminance.
い様に上記閾値が、低く設定されることを特徴とする請
求項１乃至７に記載の携帯機器。7. The portable device according to claim 1, wherein the threshold value is set low so that the key illumination is turned on only in darkness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001250548A JP2003060744A (en) | 2001-08-21 | 2001-08-21 | Portable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001250548A JP2003060744A (en) | 2001-08-21 | 2001-08-21 | Portable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003060744A true JP2003060744A (en) | 2003-02-28 |
Family
ID=19079344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001250548A Pending JP2003060744A (en) | 2001-08-21 | 2001-08-21 | Portable device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003060744A (en) |
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