US20050049011A1 - Power control apparatus of a foldable portable mobile terminal - Google Patents
Power control apparatus of a foldable portable mobile terminal Download PDFInfo
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- US20050049011A1 US20050049011A1 US10/945,447 US94544704A US2005049011A1 US 20050049011 A1 US20050049011 A1 US 20050049011A1 US 94544704 A US94544704 A US 94544704A US 2005049011 A1 US2005049011 A1 US 2005049011A1
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- Prior art keywords
- terminal
- key
- power
- sub
- switch
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
- H04M1/0245—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call using open/close detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
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- 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
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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- 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
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
- H04M1/236—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof including keys on side or rear faces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- 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 generally to a portable mobile terminal, and more particularly, to a power control apparatus of a foldable portable mobile terminal.
- the foldable terminals are usually classified into flip type terminals, flip-up type terminals and folder type terminals.
- the flip type terminal has a flip cover for protecting the key-pad on the main body and collecting a transmitting sound.
- the flip cover functions as a sub-body.
- the flip-up type terminal has a flip cover that opens toward the upper side of the main body.
- the folder type terminal has an LCD (Liquid Crystal Display) module on a sub-body thereof.
- the foldable terminal has a key for powering on/off the terminal (hereinafter will be referred to as “power key”) in the key-pad on the main body.
- the key can be covered by the sub-body. Therefore, in order to power on/off the foldable terminal, a user should open the sub-body closed onto the main body. Then, the user can power on/off the terminal by using the power key.
- the sub-body must be opened for the powering-on/off of the foldable terminal. Therefore, it may be convenient for the user if the terminal can be powered on/off with the sub-body remaining closed.
- an object of the present invention to provide a power control apparatus in a foldable portable radio terminal allowing the terminal to be powered on/off with the sub-body of the terminal being closed.
- Yet another object of the present invention is to provide a power control apparatus in a foldable portable radio terminal comprising an automatic folder key, which can also be used as a power key.
- a power control apparatus in a foldable portable radio terminal comprising a main body, a sub-body, a key-pad including a power key on the main body, and an external function key which can be key-input by a user even if the sub-body is closed onto the main body.
- the power control apparatus comprises a first switch, a second switch, and a control unit for controlling the first and second switches according to powered-on/off state of the terminal.
- One end of each of the first and second switch is connected in common via a first node connected to the external function key.
- the other end of the first switch is connected to first input end of the control unit, and the other end of the second switch and the power key are connected in common via a second node connected to a second input end of the control unit.
- FIG. 1A is a perspective view of a portable radio terminal having a sub-body closed onto a main body according to an embodiment of the present invention
- FIG. 1B is a perspective view of the portable radio terminal having the sub-body opened from the main body according to an embodiment of the present invention
- FIG. 2 is a block diagram of the portable radio terminal according to an embodiment of the present invention.
- FIG. 3 is a schematic circuit diagram of the portable radio terminal which can be folded both in an automatic and a manual manner according to an embodiment of the invention.
- FIG. 4 is a circuit diagram of a power supply control circuit shown in FIG. 3 .
- the present invention is applicable to a portable terminal in which a sub-body can be opened from or closed onto a main body in an automatic and manual opening/closing manner according to the convenience of a user. Also, the invention can be applied to a portable terminal in which a sub-body can be used for only either an automatic or a manual opening/closing. While the embodiments of the invention are described about a opening/closing mechanism applied to a folder type portable terminal, it is apparent to those skilled in the art that the opening/closing mechanism of the invention can easily be applied to another type of foldable portable terminal.
- FIG. 1A is a perspective view of a foldable portable radio terminal 100 according to an embodiment of the invention in which a sub-body 120 is closed onto a main body 110 .
- FIG. 1B is a perspective view of the portable radio terminal 100 in which the sub-body 120 is opened from the main body 110 .
- the portable radio terminal 100 is comprises the main body 110 having an upper casing frame 111 and a lower casing frame 112 , and the sub-body 120 for protecting a key-pad and so on.
- an opening/closing mechanism 10 is provided to open/close the sub-body automatically or manually according to opening/closing control of the user.
- An antenna unit 130 is provided on one side of the upper most end of the main body 110 .
- An ear piece 140 is provided on a portion of the sub-body 120 connected to the main body 110 , and an LCD module 150 as a display unit is placed under the ear piece 140 .
- a key-pad 160 and a microphone unit 170 are placed on the main body 110 .
- the key-pad 160 includes a power key 190 as shown in FIG. 1B .
- An automatic folder switch 180 is provided on one side of the main body 110 to automatically open/close the sub-body from/onto the main body 110 .
- the sub-body 120 is opened/closed from/onto the main body by the opening/closing mechanism.
- FIG. 2 is a block diagram of the portable radio terminal 100 according to an embodiment of the invention.
- the control unit 200 performs the overall control of the portable radio terminal 100 .
- a radio processing unit 202 controls transmission/reception of audio and control data under the control of the control unit 200 .
- An audio processing unit 204 converts audio data received from the radio processing unit 202 into audible sound, which is outputted via a speaker SPK, and processes an audio signal received via a microphone MIC into data, which is output to the radio processing unit 202 under the control of the control unit 200 .
- a key input unit 206 includes a plurality of number keys and function keys in the key-pad, the automatic folder switch 180 on one side of the main body 110 as shown in FIGS.
- the display unit 208 corresponds to LCD 150 and displays a number of messages and images under the control of the control unit 200 .
- the memory unit 230 includes a program memory for storing program data necessary for controlling the operation of the portable mobile terminal, and a data memory for storing data generated during control or performance by the user.
- a circuit block in FIG. 2 includes a motor driving unit 232 , a sub-body opening/closing motor 234 , a sub-body open sensor 236 and a sub-body closed sensor 238 .
- the motor driving unit 232 operates so that the sub-body opening/closing motor 234 is rotated clockwise or counter clockwise under the control of the control unit 200 .
- the open sensor 236 detects that the sub-body 120 is completely opened from the main body 110
- the closed sensor 238 detects that the sub-body 120 is completely closed on the main body 110 .
- the open sensor 236 and the closed sensor 238 can be realized, for example, as hall sensors having hall elements and magnets. If the open sensor 236 and the closed sensor 238 are realized as the hall sensors, positions of the hall elements and the magnets in the open sensor 236 and the shut sensor 238 will be described in reference to FIG. 1B as follows.
- the magnet 236 a is arranged on a hinge of the opening/closing mechanism 10 and the hall element 236 b is arranged on the upper most side of the main body 110 as shown in FIG. 1B .
- the hall element 236 b and the magnet 236 a of the open sensor 236 are in contact with each other and thus the open sensor 236 outputs a detection signal of sub-body opening complete to the control unit 200 .
- the magnet 238 a is arranged above the ear piece 140 in the sub-body and the hall element 238 b is arranged on the lower most side of the main body 110 as shown in FIG. 1B .
- the hall element 238 b and the magnet 238 a of the closed sensor 238 contact each other, and thus the closed sensor 238 outputs a detection signal of sub-body closing complete to the control unit 200 .
- the control unit 200 controls the operation of the motor driving unit 232 of the opening/closing mechanism 10 to automatically open/close the sub-body 120 upon recognizing the opening/closing control.
- the sub-body opening/closing motor 234 rotates clockwise or counter clockwise according to the operation control of the motor driving unit 232 so that the sub-body 120 can be opened or closed.
- a power control apparatus in which the user can power on/off the terminal by using either the automatic folder switch 180 arranged in the side of the main body 110 or the power key 190 in the key pad on the main body 110 is provided. Therefore, the user can power on/off the terminal without opening the sub-body 120 . Also, when the terminal is powered on, the automatic folder switch 180 or the power key 190 can perform their own characteristic key functions.
- FIG. 3 is a circuit diagram of the power control apparatus in the portable radio terminal, which can be folded in an automatic and manual manner according to an embodiment of the invention.
- FIG. 4 illustrates a detailed circuit structure of the control unit 200 and a power supply control circuit 306 as illustrated in FIG. 3 .
- the automatic folder switch 180 in FIG. 3 is the automatic folder switch 180 arranged in the side of the main body 110 as shown in FIGS. 1A and 1B .
- the power key 190 in FIG. 3 is the power key 190 on the key-pad 160 on the main body as shown in FIG. 1B .
- the power control apparatus includes the automatic power switch 180 , the power key 190 , a first switch SWC 1 300 , a second switch SWC 2 302 and the power supply control circuit 306 as shown in FIG. 3 .
- the power control apparatus also includes the control unit 200 shown in FIG. 2 .
- the first and second switches 300 and 302 in FIG. 3 are switched under the control of the control unit 200 in FIG. 2 .
- the control unit 200 controls the switching of the first and second switches 300 and 302 according to power on/off states of the terminal 100 .
- the control unit 200 controls the first switch 300 open and the second switch 302 closed in the powered-off state of the terminal 100 . Accordingly, the user can power on the terminal 100 by using either the automatic folder switch 180 or the power key 190 in the powered-off state. Also, the control unit 200 controls the first switch 300 closed and the second switch 302 open in the powered-on state of the terminal 100 . Accordingly, the automatic folder switch and the power key 190 can perform their own functions.
- the control unit 200 controls the first switch 300 open and the second switch closed by using a switch control signal SWC. Therefore, the first switch 300 is closed and the second switch 302 is open in the powered-on state of the terminal.
- the power control signal PWC in a logic “high” state is applied to the power supply control circuit 306 via a line 304 and also to the control unit 200 via the node N 2 as shown in FIG. 3 .
- pressing the automatic folder switch 180 applies the power control signal PWC in the logic “high” state to the control unit 200 via the second switch 302 in the closed state and the node N 2
- pressing the power key 190 applies the power control signal PWC in the logic “high” state to the control unit 200 via the node N 2 .
- the NPN transistor 312 of the power supply control circuit 306 is turned on and thus the P channel field effect transistor 310 is turned on also.
- the battery power V bat is supplied to the control unit 200 as a DC power V dc .
- the control unit 200 is activated. In the activated state, as the user presses the power key 190 or the automatic folder switch 180 , the control unit 200 detects the power control signal PWC in the logic “high” state which is applied via the node N 2 in FIG.
- the control unit 200 determines if the power control signal PWC is continuously applied for a certain time, for example, 3 to 4 seconds. If the power control signal PWC is continuously applied for a certain time, the control unit 200 applies a V dc-holder signal in logic “high” state to a base of the NPN transistor 312 so that the P channel field effect transistor 310 may be continuously turned on. Accordingly, the power V bat is continuously supplied to the control unit 200 as the DC power V dc even if the user stops pressing the power key. The control unit 200 will control each of circuits to be supplied with the battery power V bat .
- the control unit 200 controls the first switch 300 closed and the second switch 302 open by using the switch control signal SWC. Accordingly, if the user presses the automatic folder switch 180 in the powered-on state of the terminal 100 , a sub-body opening/closing signal is applied to the control unit 200 via the node N 1 and the first switch 300 . Also, if the user presses the power key 190 in the powered-on state of the terminal, the power control signal PWC is applied to the control unit 200 via the node N 2 . In other words, the automatic folder switch 180 and the power key 190 perform their own functions in the powered-on state of the terminal 100 .
- the external function key (the automatic folder switch 180 for example) as the power key is realized so that the user can power on without opening the sub-body even in the powered-off state of the terminal. Also, there is an advantage that the terminal keys can perform their own functions in the powered-off state of the terminal.
Abstract
A power control apparatus in a foldable portable radio terminal which includes a main body, a sub-body, a key-pad including a power key on the main body, an external function key which can be key-input by a user even if the sub-body is shut on the main body is disclosed. According to the invention, the external function key (the automatic folder switch for example) as the power key is realized so that the user can power-on the terminal without opening the sub-body even in the powered-off state of the terminal, and the terminal keys can perform their own functions in the powered-off state of the terminal.
Description
- This application is Continuation Application of U.S. patent Ser. No. 09/841,990, which claims priority to an application entitled “POWER CONTROL APPARATUS OF FOLDED PORTABLE MOBILE TERMINAL” filed with the Korean Industrial Property Office on Oct. 31, 2000 and assigned Serial No. 2000-64192, the contents of which are hereby incorporated by reference.
- 1. Field of the invention
- The present invention relates generally to a portable mobile terminal, and more particularly, to a power control apparatus of a foldable portable mobile terminal.
- 2. Description of the Related Art
- In general, portable mobile terminals are classified into bar type terminals and foldable terminals. While the bar type terminal is gradually decreasing in use since the key-pad of the terminal is exposed from the body of the terminal, the foldable terminal is currently being developed in various shapes due to the sub-body of the terminal opening/closing in respect to the main body of the terminal to protect the key-pad of the terminal.
- The foldable terminals are usually classified into flip type terminals, flip-up type terminals and folder type terminals. The flip type terminal has a flip cover for protecting the key-pad on the main body and collecting a transmitting sound. The flip cover functions as a sub-body. The flip-up type terminal has a flip cover that opens toward the upper side of the main body. The folder type terminal has an LCD (Liquid Crystal Display) module on a sub-body thereof.
- The foldable terminal has a key for powering on/off the terminal (hereinafter will be referred to as “power key”) in the key-pad on the main body. The key can be covered by the sub-body. Therefore, in order to power on/off the foldable terminal, a user should open the sub-body closed onto the main body. Then, the user can power on/off the terminal by using the power key.
- As described above, the sub-body must be opened for the powering-on/off of the foldable terminal. Therefore, it may be convenient for the user if the terminal can be powered on/off with the sub-body remaining closed.
- It is, therefore, an object of the present invention to provide a power control apparatus in a foldable portable radio terminal allowing the terminal to be powered on/off with the sub-body of the terminal being closed.
- It is another object of the present invention to provide a power control apparatus in a foldable portable radio terminal comprising an external function key, which can be used as a power key.
- Yet another object of the present invention is to provide a power control apparatus in a foldable portable radio terminal comprising an automatic folder key, which can also be used as a power key.
- To achieve the above objects of the invention, a power control apparatus in a foldable portable radio terminal comprising a main body, a sub-body, a key-pad including a power key on the main body, and an external function key which can be key-input by a user even if the sub-body is closed onto the main body. The power control apparatus comprises a first switch, a second switch, and a control unit for controlling the first and second switches according to powered-on/off state of the terminal. One end of each of the first and second switch is connected in common via a first node connected to the external function key. The other end of the first switch is connected to first input end of the control unit, and the other end of the second switch and the power key are connected in common via a second node connected to a second input end of the control unit.
- The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
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FIG. 1A is a perspective view of a portable radio terminal having a sub-body closed onto a main body according to an embodiment of the present invention; -
FIG. 1B is a perspective view of the portable radio terminal having the sub-body opened from the main body according to an embodiment of the present invention; -
FIG. 2 is a block diagram of the portable radio terminal according to an embodiment of the present invention; -
FIG. 3 is a schematic circuit diagram of the portable radio terminal which can be folded both in an automatic and a manual manner according to an embodiment of the invention; and -
FIG. 4 is a circuit diagram of a power supply control circuit shown inFIG. 3 . - Hereinafter preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that like elements in the drawings are referred to by like numerals over the entire application. Also, in the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
- The present invention is applicable to a portable terminal in which a sub-body can be opened from or closed onto a main body in an automatic and manual opening/closing manner according to the convenience of a user. Also, the invention can be applied to a portable terminal in which a sub-body can be used for only either an automatic or a manual opening/closing. While the embodiments of the invention are described about a opening/closing mechanism applied to a folder type portable terminal, it is apparent to those skilled in the art that the opening/closing mechanism of the invention can easily be applied to another type of foldable portable terminal.
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FIG. 1A is a perspective view of a foldableportable radio terminal 100 according to an embodiment of the invention in which asub-body 120 is closed onto amain body 110.FIG. 1B is a perspective view of theportable radio terminal 100 in which thesub-body 120 is opened from themain body 110. - Referring to
FIGS. 1A and 1B , theportable radio terminal 100 is comprises themain body 110 having anupper casing frame 111 and alower casing frame 112, and thesub-body 120 for protecting a key-pad and so on. On one side of themain body 110, an opening/closing mechanism 10 is provided to open/close the sub-body automatically or manually according to opening/closing control of the user. Anantenna unit 130 is provided on one side of the upper most end of themain body 110. Anear piece 140 is provided on a portion of thesub-body 120 connected to themain body 110, and anLCD module 150 as a display unit is placed under theear piece 140. A key-pad 160 and amicrophone unit 170 are placed on themain body 110. The key-pad 160 includes apower key 190 as shown inFIG. 1B . Anautomatic folder switch 180 is provided on one side of themain body 110 to automatically open/close the sub-body from/onto themain body 110. When the user uses theautomatic folder switch 180 for automatic opening/closing or performs a manual opening/closing, thesub-body 120 is opened/closed from/onto the main body by the opening/closing mechanism. -
FIG. 2 is a block diagram of theportable radio terminal 100 according to an embodiment of the invention. Referring toFIG. 2 , thecontrol unit 200 performs the overall control of theportable radio terminal 100. Aradio processing unit 202 controls transmission/reception of audio and control data under the control of thecontrol unit 200. Anaudio processing unit 204 converts audio data received from theradio processing unit 202 into audible sound, which is outputted via a speaker SPK, and processes an audio signal received via a microphone MIC into data, which is output to theradio processing unit 202 under the control of thecontrol unit 200. Akey input unit 206 includes a plurality of number keys and function keys in the key-pad, theautomatic folder switch 180 on one side of themain body 110 as shown inFIGS. 1A and 1B , and outputs data corresponding to keys pressed by the user to thecontrol unit 200. Thedisplay unit 208 corresponds toLCD 150 and displays a number of messages and images under the control of thecontrol unit 200. Thememory unit 230 includes a program memory for storing program data necessary for controlling the operation of the portable mobile terminal, and a data memory for storing data generated during control or performance by the user. - A circuit block in
FIG. 2 includes amotor driving unit 232, a sub-body opening/closing motor 234, a sub-bodyopen sensor 236 and a sub-bodyclosed sensor 238. Themotor driving unit 232 operates so that the sub-body opening/closing motor 234 is rotated clockwise or counter clockwise under the control of thecontrol unit 200. Theopen sensor 236 detects that the sub-body 120 is completely opened from themain body 110, and theclosed sensor 238 detects that the sub-body 120 is completely closed on themain body 110. Theopen sensor 236 and theclosed sensor 238 can be realized, for example, as hall sensors having hall elements and magnets. If theopen sensor 236 and theclosed sensor 238 are realized as the hall sensors, positions of the hall elements and the magnets in theopen sensor 236 and theshut sensor 238 will be described in reference toFIG. 1B as follows. - In the
open sensor 236 including amagnet 236 a and ahall element 236 b, themagnet 236 a is arranged on a hinge of the opening/closing mechanism 10 and thehall element 236 b is arranged on the upper most side of themain body 110 as shown inFIG. 1B . When the sub-body 120 is completely opened by the opening/closing mechanism 10, thehall element 236 b and themagnet 236 a of theopen sensor 236 are in contact with each other and thus theopen sensor 236 outputs a detection signal of sub-body opening complete to thecontrol unit 200. - In the
closed sensor 238 including themagnet 238 a and thehall sensor 238 b, themagnet 238 a is arranged above theear piece 140 in the sub-body and thehall element 238 b is arranged on the lower most side of themain body 110 as shown inFIG. 1B . When the sub-body 120 is completely closed by the opening/closing mechanism 10, thehall element 238 b and themagnet 238 a of theclosed sensor 238 contact each other, and thus theclosed sensor 238 outputs a detection signal of sub-body closing complete to thecontrol unit 200. When the user of the portablemobile terminal 100 uses theautomatic folder switch 180 to perform a sub-body automatic opening/closing control, thecontrol unit 200 controls the operation of themotor driving unit 232 of the opening/closing mechanism 10 to automatically open/close the sub-body 120 upon recognizing the opening/closing control. The sub-body opening/closing motor 234 rotates clockwise or counter clockwise according to the operation control of themotor driving unit 232 so that the sub-body 120 can be opened or closed. - According to an embodiment of the invention, a power control apparatus in which the user can power on/off the terminal by using either the
automatic folder switch 180 arranged in the side of themain body 110 or thepower key 190 in the key pad on themain body 110 is provided. Therefore, the user can power on/off the terminal without opening the sub-body 120. Also, when the terminal is powered on, theautomatic folder switch 180 or thepower key 190 can perform their own characteristic key functions. -
FIG. 3 is a circuit diagram of the power control apparatus in the portable radio terminal, which can be folded in an automatic and manual manner according to an embodiment of the invention.FIG. 4 illustrates a detailed circuit structure of thecontrol unit 200 and a powersupply control circuit 306 as illustrated inFIG. 3 . - The
automatic folder switch 180 inFIG. 3 is theautomatic folder switch 180 arranged in the side of themain body 110 as shown inFIGS. 1A and 1B . Thepower key 190 inFIG. 3 is thepower key 190 on the key-pad 160 on the main body as shown inFIG. 1B . - The power control apparatus according to an embodiment of the present invention includes the
automatic power switch 180, thepower key 190, afirst switch SWC1 300, asecond switch SWC2 302 and the powersupply control circuit 306 as shown inFIG. 3 . The power control apparatus also includes thecontrol unit 200 shown inFIG. 2 . The first andsecond switches FIG. 3 are switched under the control of thecontrol unit 200 inFIG. 2 . Thecontrol unit 200 controls the switching of the first andsecond switches - The
automatic folder switch 180 and thepower key 190 are connected to a battery power Vbat. Theautomatic folder switch 180 is connected in common to the first andsecond switches first switch 300 is connected to a first input end of thecontrol unit 200. The first input end of thecontrol unit 200 is applied a sub-body opening/closing control signal. Thepower key 190 is connected in common to a second input end of thecontrol unit 200 and the other end of thesecond switch 302 at node N2. The second input end of thecontrol unit 200 is applied with a power control signal PWC. - The power
supply control circuit 306 inFIG. 3 is a circuit for controlling the supply and interruption of the battery power Vbat to thecontrol unit 200 and each circuit portion according to switching on/off thepower key 190 by the user. The powersupply control circuit 306 inFIG. 3 includes a P channelfield effect transistor 310 and anNPN transistor 312. - Hereinafter, the operation according to an embodiment of the invention will be described in detail with reference to
FIG. 1A toFIG. 4 . - In an embodiment of the present invention, the
control unit 200 controls thefirst switch 300 open and thesecond switch 302 closed in the powered-off state of the terminal 100. Accordingly, the user can power on the terminal 100 by using either theautomatic folder switch 180 or thepower key 190 in the powered-off state. Also, thecontrol unit 200 controls thefirst switch 300 closed and thesecond switch 302 open in the powered-on state of the terminal 100. Accordingly, the automatic folder switch and thepower key 190 can perform their own functions. - First, the operation according to an embodiment of the invention in the powered-off state of the terminal 100 will be described. When the user powers off the terminal 100, the
control unit 200 controls thefirst switch 300 open and the second switch closed by using a switch control signal SWC. Therefore, thefirst switch 300 is closed and thesecond switch 302 is open in the powered-on state of the terminal. In this powered-off state of the terminal, when the user opens the sub-body 120 to press thepower key 190 or presses theautomatic folder switch 180 in the side of themain body 110 without opening the sub-body 120, the power control signal PWC in a logic “high” state is applied to the powersupply control circuit 306 via aline 304 and also to thecontrol unit 200 via the node N2 as shown inFIG. 3 . In other words, pressing theautomatic folder switch 180 applies the power control signal PWC in the logic “high” state to thecontrol unit 200 via thesecond switch 302 in the closed state and the node N2, and pressing thepower key 190 applies the power control signal PWC in the logic “high” state to thecontrol unit 200 via the node N2. - When the power control signal PWC in the logic “high” state is applied to the power
supply control circuit 306, theNPN transistor 312 of the powersupply control circuit 306 is turned on and thus the P channelfield effect transistor 310 is turned on also. As thefield effect transistor 310 is turned on, the battery power Vbat is supplied to thecontrol unit 200 as a DC power Vdc. As the DC power Vdc is supplied, thecontrol unit 200 is activated. In the activated state, as the user presses thepower key 190 or theautomatic folder switch 180, thecontrol unit 200 detects the power control signal PWC in the logic “high” state which is applied via the node N2 inFIG. 3 , and determines if the power control signal PWC is continuously applied for a certain time, for example, 3 to 4 seconds. If the power control signal PWC is continuously applied for a certain time, thecontrol unit 200 applies a Vdc-holder signal in logic “high” state to a base of theNPN transistor 312 so that the P channelfield effect transistor 310 may be continuously turned on. Accordingly, the power Vbat is continuously supplied to thecontrol unit 200 as the DC power Vdc even if the user stops pressing the power key. Thecontrol unit 200 will control each of circuits to be supplied with the battery power Vbat. - Next, the operation according to an embodiment of the invention in the powered-on state of the terminal 100 will be described.
- In the powered-on state of the terminal 100, the
control unit 200 controls thefirst switch 300 closed and thesecond switch 302 open by using the switch control signal SWC. Accordingly, if the user presses theautomatic folder switch 180 in the powered-on state of the terminal 100, a sub-body opening/closing signal is applied to thecontrol unit 200 via the node N1 and thefirst switch 300. Also, if the user presses thepower key 190 in the powered-on state of the terminal, the power control signal PWC is applied to thecontrol unit 200 via the node N2. In other words, theautomatic folder switch 180 and thepower key 190 perform their own functions in the powered-on state of the terminal 100. - According to the present invention as described above, the external function key (the
automatic folder switch 180 for example) as the power key is realized so that the user can power on without opening the sub-body even in the powered-off state of the terminal. Also, there is an advantage that the terminal keys can perform their own functions in the powered-off state of the terminal. - While the embodiment of the present invention has been described while using the
automatic folder switch 180 arranged at the outside of the terminal 100 as an example, it will be apparent to those skilled in the art that the spirit can be applied to other function keys performing other functions. Also, while the embodiment of the invention is applied to the foldable portable radio terminal, it can be applied even to a bar type terminal. A number of variations can be made without departing from the scope of the invention. Therefore, the scope of the invention is not defined by the foregoing embodiment of the invention, but should be defined by claims and equivalents thereof.
Claims (1)
1. A power control apparatus in a portable radio terminal, comprising:
an external function key located in an accessible key input position by a user;
a power key for controlling power; and
a unit for controlling the portable radio terminal to be powered on in response to a key input from said power key when the portable radio terminal is powered-off and controlling a function of the portable radio terminal to be performed in response to a key input from said power key when the portable radio terminal is powered-on, and for controlling the portable radio terminal to be powered on in response to a key input from said external function key when the portable radio terminal is powered-off and controlling a function of the portable radio terminal to be performed in response to a key input from said external function key—when the portable radio terminal is powered-on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/945,447 US20050049011A1 (en) | 2000-10-31 | 2004-09-20 | Power control apparatus of a foldable portable mobile terminal |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR64192/2000 | 2000-10-31 | ||
KR1020000064192A KR100350504B1 (en) | 2000-10-31 | 2000-10-31 | Power control apparatus of folded portable mobile terminal |
US09/841,990 US6876872B2 (en) | 2000-10-31 | 2001-04-25 | Power control apparatus of a foldable portable mobile terminal |
US10/945,447 US20050049011A1 (en) | 2000-10-31 | 2004-09-20 | Power control apparatus of a foldable portable mobile terminal |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/841,990 Continuation US6876872B2 (en) | 2000-10-31 | 2001-04-25 | Power control apparatus of a foldable portable mobile terminal |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050049011A1 true US20050049011A1 (en) | 2005-03-03 |
Family
ID=19696307
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/841,990 Expired - Fee Related US6876872B2 (en) | 2000-10-31 | 2001-04-25 | Power control apparatus of a foldable portable mobile terminal |
US10/945,447 Abandoned US20050049011A1 (en) | 2000-10-31 | 2004-09-20 | Power control apparatus of a foldable portable mobile terminal |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/841,990 Expired - Fee Related US6876872B2 (en) | 2000-10-31 | 2001-04-25 | Power control apparatus of a foldable portable mobile terminal |
Country Status (2)
Country | Link |
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US (2) | US6876872B2 (en) |
KR (1) | KR100350504B1 (en) |
Cited By (2)
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US20020160807A1 (en) * | 2001-04-27 | 2002-10-31 | Palm, Inc. | Method and apparatus for dialing an emergency service |
US20090259886A1 (en) * | 2008-04-15 | 2009-10-15 | Broadcom Corporation | Apparatus and methods for restoring system operation states |
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JP2002152346A (en) * | 2000-11-14 | 2002-05-24 | Sanyo Electric Co Ltd | Folding type portable communication terminal equipment |
KR100369652B1 (en) * | 2001-02-16 | 2003-02-06 | 삼성전자 주식회사 | Method for optimizing control of sub-body opening/closing in automatically and manually folded portable mobile terminal |
JP4304871B2 (en) * | 2001-02-28 | 2009-07-29 | 日本電気株式会社 | Mobile phone |
JP3726070B2 (en) * | 2002-05-28 | 2005-12-14 | Necアクセステクニカ株式会社 | Portable wireless terminal |
JP4371258B2 (en) * | 2002-11-06 | 2009-11-25 | 株式会社エンプラス | Electric opening / closing mechanism |
JP2004320375A (en) * | 2003-04-15 | 2004-11-11 | Sony Ericsson Mobilecommunications Japan Inc | Electronic apparatus |
KR100591821B1 (en) * | 2003-12-10 | 2006-06-20 | 주식회사 팬택앤큐리텔 | Rotation folder type mobile phone |
KR100630097B1 (en) * | 2004-06-09 | 2006-09-27 | 삼성전자주식회사 | Portable communication device |
US20060135226A1 (en) | 2004-12-21 | 2006-06-22 | Samsung Electronics Co., Ltd. | Mobile communication terminal for changing operation mode based on opening direction of folder cover and method thereof |
US20070117594A1 (en) * | 2005-11-22 | 2007-05-24 | Motorola, Inc. | Method and system for selective deactivation of a main display |
JP2007181188A (en) * | 2005-11-30 | 2007-07-12 | Nikon Corp | Portable communication terminal |
CN101378416A (en) * | 2007-08-29 | 2009-03-04 | 深圳富泰宏精密工业有限公司 | Folding type electronic device |
JP2009145927A (en) * | 2007-12-11 | 2009-07-02 | Lenovo Singapore Pte Ltd | Portable electronic equipment |
US8611078B2 (en) * | 2010-12-29 | 2013-12-17 | Nokia Corporation | Method and apparatus for displays |
CN106332253B (en) * | 2015-06-17 | 2019-10-08 | 普天信息技术有限公司 | The control method of master control transmission power |
CN108777730A (en) * | 2018-09-13 | 2018-11-09 | 徐州卓控科技有限公司 | A kind of mobile phone automatic shutdown device |
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Also Published As
Publication number | Publication date |
---|---|
US6876872B2 (en) | 2005-04-05 |
US20020052228A1 (en) | 2002-05-02 |
KR100350504B1 (en) | 2002-08-28 |
KR20020033938A (en) | 2002-05-08 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |