KR20050088273A - Method for controlling operation mode in television phone - Google Patents

Abstract

The present invention relates to a method of controlling an operation mode of a television mobile phone (hereinafter referred to as a "TV phone") in which a television (television) and a mobile phone are integrated. To this end, the present invention provides a method for controlling an operation mode of a TV phone, the process of alarming the user when the phone receives an incoming call message from the base station in the TV mode, and automatically deactivates the TV unit, the operation of the TV phone It is characterized by consisting of the process of switching the mode directly from the TV mode to the phone mode.

Description

How to control the operation mode of a television mobile phone {METHOD FOR CONTROLLING OPERATION MODE IN TELEVISION PHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a portable telephone, and more particularly, to a method for controlling an operation mode of a television cellular phone (hereinafter referred to as a "TV telephone") in which a television (television) and a cellular phone are integrated.

With the rapid spread of portable telephones, various functions have been developed in addition to simple telephone functions according to the needs of consumers. For example, a calculator function, a biorhythm check function, and a TV, a video camera, and a function for transmitting and receiving images are being developed. Here, the TV phone refers to a portable mobile wireless telephone in which a TV broadcast program can be viewed using a display device of a mobile phone in addition to a mobile communication telephone function.

For the TV broadcast reception function as described above, at least two radio frequency units must be present in the mobile phone. The reason for this is that the frequency band required for transmitting / receiving the unique messages (voice and data) of the mobile phone and the frequency band of the TV broadcast are different from each other, and the operation mode is largely divided into the phone mode, the waiting mode, and the waiting mode. The TV mode is also used as the standby mode. Since the TV phone must use a liquid crystal display (LCD) or a thin film transistor (TFT) and a speaker or earphone, which are the display devices of the mobile phone, to receive the screen and sound of a television broadcast received in the TV mode, the call is received in the TV mode. And the method of notifying the user of the receipt of the text message should be different from the normal mobile phone.

This is because there is no way to notify the user immediately when an incoming call or a text message is received while the screen and voice of the broadcast program selected by the display device and the speaker of the mobile phone are respectively output. Accordingly, it can be seen that such a TV phone requires a new function for informing a user more quickly and accurately of an incoming call and a text message in the TV mode.

In addition, if the user is answering an incoming call (approving the use of the phone) while watching a TV program using a TV phone, the user is automatically switched from the TV mode to the phone mode to talk with the caller who is the other party. And the operation of the circuit associated with the TV should be disabled to prevent battery drain. If the user does not answer the call when the user is watching the TV program using the TV phone (if the user does not approve the use of the phone), the user must be denied the call so that the user can watch the TV smoothly. Therefore, there is a need to ensure that the user is not delivered to the incoming call state.

Accordingly, an object of the present invention is to provide an operation mode control method of a TV phone which is automatically switched from a TV reception mode to a phone mode when an incoming call is received from a TV phone configured to integrate TV and a mobile phone to selectively transmit and receive voice and TV broadcast. To provide.

It is another object of the present invention to automatically alert the user of an incoming call when an incoming signal is received by a call of the other party in a TV mode for outputting a TV broadcast through a display device, and according to a user's selection, a phone mode or a call rejection mode. It is to provide a method of controlling the operation mode of the TV phone is switched to.

In order to achieve the above object, the present invention provides a method of controlling an operation mode of a TV phone, the process of alarming the user when the phone receives an incoming call message from a base station in a TV mode, and automatically deactivating the TV unit, The operation mode of the TV phone is characterized in that the process consists of switching directly from the TV mode to the phone mode.

In another aspect, the present invention provides a method for processing an incoming call signal in the TV mode of the TV phone, performing the TV mode, displaying the generation of the incoming call when the incoming call occurs in the TV mode, and when the call confirmation key is input It is characterized by the process of switching from the mode to the phone mode, otherwise to maintain the TV mode.

Preferably, the method for processing the incoming signal in the TV mode of the TV phone further comprises the step of switching directly from the TV mode to the phone mode when the answering machine switching mode is set.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to obscure the subject matter of the present invention.

1 is a block diagram of a television mobile phone according to an embodiment of the present invention.

In FIG. 1, reference numerals 16, 30, and 32 are each a mobile radio frequency unit (MRFU), a mobile station processor (MSP) 30, and an order key pad in a mobile phone module. Such circuits are configured by further adding the components for performing the present invention to circuits applied in a conventional digital cellular phone, for example, a code division multiple access (CDMA) mobile phone, and the configuration and operation will be described later. Will be understood by self.

18, 34, 36, 38 and 40 are TV units, on-screen displays (OSDs), multiplexers (hereinafter referred to as "MUXs"), TV audio signal processing units and display devices. The TV unit 18 and the TV audio signal processor 38 are TV modules.

2 is a control flowchart illustrating a method of controlling an operation mode of a television cellular phone according to an exemplary embodiment of the present invention, which is a TV mode by reception of an incoming call message when the operation mode of the TV phone shown in FIG. 1 is a TV mode. To switch to phone mode or to maintain TV mode. This program is masked in a memory block (not shown) in the MSP 30 shown in FIG.

Hereinafter, the operation mode of the TV phone shown in FIG. 1 is set to the TV mode before explaining the operation according to the exemplary embodiment of the present invention. The alarm of the incoming call of the TV phone as shown in FIG. 1 is classified into three types and is alarmed to the user. For example, a first incoming mode for "turning on / off" TV sound, a second incoming mode for muting TV sound and "on / off" switching output of TV image, and a TV video display screen Assume that any one of the third incoming call modes for displaying the incoming call message at a specific position of is set.

When the TV phone configured as shown in FIG. 1 is operated, the antenna 12 which transmits radio waves to the air or receives air waves in the air receives the air wave in the air and is connected to the band receiving filter 14 and the MRFU 16 connected thereto. To supply. The band reception filter 14 performs band pass filtering on only the frequencies of the TV broadcast frequency bands among the received frequencies and inputs them to the TV unit 18 connected to the output terminal.

In this state, when the operation mode of the TV phone is set to the TV mode, the MSP 30 supplies the power control signal PW to the TV unit 18 and the TV audio signal processing unit 38 to enable operation. The MSP 30 inputs a channel selection signal input from the keypad 32 or a channel line signal CH-S for selecting a channel that has been previously watched. 22 to " PLL " At this time, the PLL 20 oscillates a corresponding tuning frequency (SEL-F) to provide to the TV tuner 20, and the TV tuner 20 provides the tuning frequency (SEL-F) and the band reception filter. The received signal through 14 is synthesized to output a down converted video intermediate frequency (VIF) and an audio intermediate frequency (AIF).

An image demodulator 24 connected to the output of the TV tuner 20 demodulates the video intermediate frequency signal VIF to convert a composite video signal Vcomp into a NTSC decoder connected to an output node. And a synchronization signal (Sync) of the video signal to the character insertion signal generator (28). The NTSC decoder 26 decodes the composite video signal Vcomp and provides it to the A terminal of the MUX 36 as a color signal of R, G, and B.

The character insertion signal generator 28 generates a character insertion signal that counts the synchronization signal and generates a character insertion signal when the counting value is a preset value. That is, the character insertion signal generator 28 compares a counter for counting a horizontal synchronization signal therein with a memory in which a position value of a horizontal line is stored, and compares the value of the counter with an output value of the memory when the horizontal synchronization signal is equal. Comprising a comparator for generating a character insertion control signal activated up to a period of time to generate a character insertion control signal of a predetermined interval in each field or frame period.

Therefore, the TV unit 18 configured as described above is operated by the activation of the power control signal PW from the MSP 30 to output the video and audio signals of the broadcast channel according to the channel selection signal, and at the same time, the incoming message upon incoming call. It can be seen that the section control signal for inserting is generated. The generation of this character insertion signal will be very useful when the incoming alarm mode is the text mode of the third incoming mode.

On the other hand, the MUX 36 outputs R, G, and B video signals output from the NTSC decoder 26 by the video selection signal SEL-M output from the MSP 30 in the "low" state in the TV mode. Is selected and input to the analog to digital converter (ADC) 42 in the display device 40 connected to the output node.

The ADC 42 digitally converts the inputted R, G, and B video signals and inputs them to the timing controller 44. The timing controller 44 includes a synchronous signal generator for generating a pseudo vertical synchronous signal and a pseudo horizontal synchronous signal to drive the TFT-LCD 46 connected to the output terminal by the input image data so that the screen is displayed.

In addition, the TV audio signal processing unit 38, which is operated by the power control signal PW output from the MSP 30, processes the voice intermediate frequency signal AIF output from the TV tuner 20 to broadcast TV. The audio signal of the program is reproduced and output through the speaker SP.

Accordingly, the TV unit 18, the TV audio signal processing unit 38, and the display device 40 as shown in FIG. 1 receive the video and audio of the TV broadcast program of channel selection by controlling the TV mode of the MSP 30. It can be seen that the playback. When the user selects a desired channel by operating a channel selection key located on the keypad 32 during the operation, the MSP 30 changes the channel selection signal CH-S to output and tune the PLL 22. The frequency is also changed so that the channel of the TV tuner 20 is changed.

On the other hand, the MRFU (16) connected to the antenna 12 receives the radio wave of the transmission and reception frequency band of the portable telephone, converts the analog signal into a digital signal, and converts the digital signal into an analog signal and amplifies the power after the antenna 12 Radio waves through. The MRFU 16 can be easily implemented by combining a baseband analog circuit and an RF part in a typical mobile phone. For example, "BBA2.X" (Q5312CDMA) produced by "QUALCOMM" is a BBA circuit that converts a CDMA wireless transmission / reception part and an analog signal into CDMA digital data and converts CDMA digital data into an analog signal. It can be made by combining the chip of "" and the RF unit.

The MSP 30 connected to the MRFU 16 analyzes a command provided from the keypad 32 and generates control signals corresponding thereto. In addition, the MSP 30 analyzes the received forward channel data message through demodulation, deinterleaving and decoding, data signal processing and vocoding, and the like. Has a function of reproducing an audio signal and its reverse function. For example, the reproduced analog audio signal is output to the speaker SP, and the analog audio signal input from the microphone MIC is converted into a CDMA digital signal and transmitted to the reverse channel through the MRFU 16. Has the function to make In addition, when the received forward channel data message is a message related to the incoming call, the MSP 30 analyzes the incoming alarm mode set in the internal memory and controls the incoming mode as shown in FIG. 3 to call the user who is watching TV. Alarm incoming status. The MSP 30 may use the "MSM2300" supplied in a one-chip form from "QUALCOMM company" located in the United States.

The OSD 34 connected to the output node of the MSP 30 generates an OSD image signal corresponding to the character generation control data output from the MSP 30 to another input terminal B of the MUX 36 described above. to provide. The MUX 36 selects an image input to the input terminal A by the image selection signal SEL-M output from the MSP 30 in a "low" state in the TV mode, and connects the ADC to the output terminal. Supply to (42).

As described above, while the operation of the TV phone shown in FIG. 1 is operated in the TV reception mode and is listening to the broadcast program of the desired channel, the MSP 30 monitors the output of the MRFU 16 to monitor itself. In step 102 of FIG. 2, a mobile phone call incoming call message is received. At this time, if no incoming call related message is received, the MSP 30 continues to operate in the TV mode. Here, the call-related incoming message includes both ring information for calling a mobile phone and a text message of SMS (short message service).

If it is determined that the incoming call related message is received through the MRFU 16, the fraudulent MSP 30 searches for an incoming alarm mode set in the internal memory area (104). In this case, the incoming alarm mode means the first, second and third incoming modes described above. In addition, the MSP 30 notifies the user that there is a call in accordance with the preset call mode in step 104. For example, the incoming call alarm mode is set to one of the bell mode, the vibration mode, and the lamp (silence) mode, so that the audio signal or the audio signal of the currently watching TV program and the output of the OSD 34 are properly controlled. Can be alarmed. That is, a method of muting the output of the TV audio signal processing unit 38, controlling the output on the screen through the display device 40, switching the playback screen, or displaying a specific character to alarm Can be applied. This control is performed by the OSD 34 in synchronization with the MSP 30 activating / deactivating the mute signal connected to the TV audio signal output control unit 38, the selection signal SEL-M of the MUX 36, and the character insertion signal. These can be executed by appropriately controlling the output of a character generation control signal (CD) or the like that is output as

In step 104, the MSP 30, which alarms the incoming call, determines whether the answering machine switching mode is set by searching for a flag in the internal memory area. In this case, the auto answer switching mode refers to a mode set by the user to automatically answer a call when there is an incoming call so that a call can be made with the other party.

If it is determined in step 106 that the automatic response switching mode is set, the MSP 30 transitions the power control signal PW to an inactive state in step 110 to supply power to the TV unit 18 and the TV audio signal processing unit 38. "Off". The reason for turning off the power is to reduce battery consumption. The MSP 30 then transitions to the call mode by supplying a response message to the incoming call to the MRFU 16 in step 112. The MRFU 16, which receives the response message for the incoming call in step 112, transmits the received signal to the base station through the reverse channel to form a call channel between the other party and the mobile phone as in a normal mobile phone call procedure. do.

If the answering machine switching mode is not set in step 106, the MSP 30 selects a telephone use allowance key (ANY KEY except SEND KEY, OK KEY or END KEY) set on the keypad 32 in step 108; To see if it occurs. When the user watching the TV recognizes the incoming call and selects the Send key located on the keypad in the above state, the MSP 30 detects this in step 108 and the process after step 110 described above. To turn off the TV and make a call with the other party.

However, if it is determined in step 108 that the telephone use permission key is not input, the MSP 30 determines whether a key for rejecting a call, for example, an ENF KEY, is selected in step 114 of the keypad 32. Read and retrieve the output. At this time, if no key located on the keypad 32 is selected, it is determined that the user does not recognize the incoming call, and repeats the above process. Therefore, when the incoming call message is received through the forward channel from the base station, the incoming call is delivered to the user by the operation of step 104 described above.

If the user who recognizes a signal indicating that a telephone call has been received while the video and audio of the TV broadcast is reproduced and output, selects an end key located on the keypad 32 to reject the telephone call, the MSP 30 may call 116. Reject incoming call in the process. The rejection of the call disables the output of the ring tone data outputted to the speaker SP by the ring data included in the data of the forward channel by the MSP 30 analyzing the data of the forward channel received through the MRFU 16. By doing so. In this way, when the output of the ring-related data that is currently received is disabled, the video and audio of the currently selected channel are continuously transmitted to the video and TV audio signal processor 38 that is currently played through the TFT-LCD 46 of the display device 40. The playback is output.

As described above, according to the present invention, when the user receives a call while watching TV under the control as shown in FIG. 2, the user is alerted to the user, and the operation mode of the TV phone in the TV mode is selected according to the user's selection. By automatically switching to the mode and turning off the TV unit, it is possible to prevent the battery from being discharged due to the simultaneous operation of the TV and the mobile phone, and to use the TV phone more efficiently.

As described above, the present invention provides a battery saving by cutting off the power supply to the circuit associated with the TV module while at the same time making it easy to switch from the TV mode to the phone mode of the incoming call of the TV phone in which the TV and the mobile phone are integrated. ) Can be made easier.

1 is a block diagram of a television cellular phone according to an embodiment of the present invention.

2 is a control flowchart illustrating a method of controlling an operation mode of a television cellular phone according to an exemplary embodiment of the present invention.

Claims (12)

In the operation mode control method of the TV phone, Alarming the user when the TV phone receives an incoming call message from the base station in the TV mode; And automatically deactivating the TV unit and directly switching the operation mode of the TV phone from the TV mode to the phone mode. The method of claim 1, The call-related incoming message is any one of ring information or a text message for calling a mobile phone. The method of claim 1, wherein the alarm process And displaying a text message on a display unit when receiving an incoming call related message. The method of claim 1, wherein the alarm process And on / off switching of an audio signal output from a speaker of a TV phone when the incoming call-related incoming message is received. The method of claim 1, wherein the alarm process And muting the TV audio signal upon receiving the telephone-related incoming message, and switching on / off the TV video signal displayed on the display unit. In the method of processing the incoming call in the TV mode of the TV phone, Performing the TV mode, Displaying an incoming call when the incoming call is generated in a TV mode; And when the call confirmation key is input, switching from the TV mode to the phone mode; otherwise, maintaining the TV mode. The method of claim 6, If the answering machine switching mode is set, the method further comprises the step of switching directly from the TV mode to the phone mode. The method of claim 6, wherein the marking process is And displaying a text message on the display unit when an incoming call occurs. The method of claim 6, wherein the marking process is And switching on / off an audio signal output from a speaker of a TV phone when an incoming signal is generated. The method of claim 6, wherein the marking process is And muting the TV audio signal and switching the video signal displayed on the display unit on / off when an incoming call is generated. The method of claim 6, The incoming call is a voice call. The method of claim 6, The incoming call is a text message call.