JP2005094418A - Cellular phone having television reception function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a cellular phone having a television reception function of which functionality and efficiency in current consumption are improved. <P>SOLUTION: A control unit 5 is provided where the control unit 5 controls an ANT1 that is a transmission and reception radio section for normal telephones, a transmission/reception section 3 for telephones, a modulation/demodulation section 4, an open/close detector 6, a KEY input section 7, a memory 8, a speaker drive circuit section 11, and an LCD display control unit 12 each and exchanges information. Additionally, an ANT2, a reception section 14 for TVs, a voice detector 15, a picture detector 16, and a picture signal processor 17 are circuit blocks for television reception; and the supply of power to an entire television power supply 19 is controlled by a television power supply control unit 18. In this configuration, there are provided the open/close detector for detecting the opening and closing of the cellular phone; a television reception configuration section for receiving a television signal; and the television power supply control unit for controlling the supply of power to the television reception configuration section. The telephone is set to be in a folded state while the television signal is being received. As a result, the picture display of the television signal is stopped and a function for maintaining voice output is composed, thus solving the problem wherein the lifetime of a battery is shortened, when watching the television. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile phone with a television receiving function that improves the efficiency of power supply.

  Recently, mobile phones have become multifunctional, and some of them have TV reception functions. Such a mobile phone with a television receiving function is small and light, and is excellent in convenience.

One conventional technique proposes to reduce extra power consumption by restricting the animation operation when the mobile phone terminal is closed (see Patent Document 1).
In another prior art, power consumption in a mobile device is reduced by setting an appropriate transmission output limit (see Patent Document 2).
JP 2002-261888 A JP 2002-223269 A

  The problem to be solved is that the current consumption at the time of reception by the television receiver is much larger than the current consumption of the mobile phone. For example, it is approximately twice the telephone call current. Therefore, shortening the battery life when watching TV is a problem.

  The folding cellular phone of the present invention according to claim 1 is an open / close detecting unit for detecting opening / closing of a cellular phone, a television receiving component for receiving a television signal, and a television power source for controlling power supply to the television receiving component. And a control unit, and the telephone is folded during reception of the television signal, whereby the video display of the television signal is stopped and the audio output is maintained.

  According to a second aspect of the present invention, in the foldable mobile phone according to the first aspect, the television receiving configuration unit includes a video demodulation unit that demodulates the video of the television signal, and a video signal processing unit that processes the demodulated video signal. And a function of controlling the power supply to the video demodulation unit and the video signal processing unit in a folded state of the folding mobile phone to stop the video display of the television signal.

  According to a third aspect of the present invention, in the folding cellular phone according to the second aspect, the power supply to the video demodulation unit and the video signal processing unit is controlled in the folded state to stop the video display of the TV signal. The video signal of the television signal can be started by opening the folded state.

  According to a fourth aspect of the present invention, in the folding cellular phone according to the second aspect, the power supply to the video demodulating unit and the video signal processing unit is controlled in the folded state to stop the video display of the TV signal. The video display of the television signal can be started by a predetermined KEY operation.

  According to a fifth aspect of the present invention, in the foldable mobile phone according to the third or fourth aspect, the power supply control is applied to a television display driving unit that drives a television display as a first stage, and a video display of a television signal is performed. It is characterized in that the start of the process is made faster.

  According to a sixth aspect of the present invention, in the folding cellular phone according to the fifth aspect, the power supply control is applied to the television display driving unit as the first stage, and the video demodulating section and the video signal as the second stage. And adapting to the processing unit, and providing a difference in the length of the video display stop time at the start of the video display of the television signal.

  According to the mobile phone with a television reception function of the present invention, it is possible to reduce current consumption. By implementing this configuration and control, it is possible to provide TV sound even when folded, and the telephone can be folded and placed in the back to listen to TV reception sound. As a result, there is an effect that the usage of the mobile phone with a television receiving function is expanded. In addition, by individually controlling the power supply to the circuits of the video unit and the audio unit, current consumption can be reduced and the battery life at the time of television reception can be extended. Furthermore, by simply restarting the video display by opening and closing the hinge portion, there is an effect that the user can not miss the television video that the user wants to watch.

Embodiments of a mobile phone with a television receiving function according to the present invention will be described in detail with reference to the accompanying drawings. Referring to FIG. 1, FIG. 2, and FIG. 3, there is shown an embodiment of a mobile phone with a television reception function of the present invention.
The cellular phone of the present invention particularly relates to a folded cellular phone, and has a control function for continuously outputting TV reception audio even in a folded state in which the cellular phone is not normally used, and a video signal detector and a video signal It has a feature of having a function of stopping the power supply of the processing unit.
In addition, when the folding telephone is opened from the state where only the sound is output, there is a feature of having a control function for restarting video display.

  Example 1 is shown in FIG. 1 and FIG. The function shown in FIG. 2 is implemented using the mobile phone with a television receiving function having the block configuration shown in FIG. The configuration contents of the first embodiment will be described in detail below.

The cellular phone with a television reception function shown in FIG. 1 includes an ANT 1, an ANT 2, a telephone transmission / reception unit 3, a modem unit 4, a control unit 5, an open / close detection unit 6, a key input unit 7, a memory unit 8, and a speaker drive circuit unit 11. And an LCD display control unit 12, an LCD display unit 13, a television power supply control unit 18, and a television power supply unit 19. The television power supply unit 19 includes a TV receiving unit 14, an audio detection unit 15, a video detection unit 16, and a video signal processing unit 17.
The mobile phone with a TV reception function of this configuration is configured such that the TV power supply control unit 18 controls the power supply to the entire TV power supply unit 19.

FIG. 1 is a block diagram illustrating a configuration example of a mobile phone applied to the first embodiment of the present invention. In FIG. 1, an ANT1, a telephone transmission / reception unit 3, and a modem unit 4 are transmission / reception radio units for a normal telephone.
The control unit 5 performs each control of the open / close detection unit 6, the KEY input unit 7, the memory unit 8, the speaker drive circuit unit 11, and the LCD display control unit 12 and exchanges information. The LCD display control unit 12 controls transmission of display data to the LCD display unit 13. The ANT2, the TV receiver 14, the audio detector 15, the video detector 16, and the video signal processor 17 are circuit blocks for TV reception. The power supply is controlled.

FIG. 2 shows an operation example of the television reception video and audio when the folding unit is opened / closed while the folding telephone is receiving television. An operation example according to the first embodiment will be described with reference to FIGS. 1 and 2.
In FIG. 2, the folded state is expressed as “hinge part closed”, and the unfolded state is expressed as “hinge part opened” (step 204). Also, setting whether to stop or not to stop the TV reception sound when “hinge part closed” is provided as a function setting item by user operation, and this setting state is stored in the memory part 8 of FIG. . This function is the TV sound setting when the hinge portion is closed (step 205).

  Normally, the state of “hinge part open” with the hinge part opened is set as the normal display part (step 201), and the television reception is turned on (step 202) by the user's operation of the KEY input part 7 and the LCD display part 13 is displayed. The operation of displaying TV reception video and outputting TV reception audio to the speaker (step 203) is performed. The operation state of step 203 is determined by the control unit 5 and the TV power control unit 18 by turning on the power to the TV receiving unit 14, the sound detecting unit 15, the video detecting unit 16, and the video signal processing unit 17 and the initial setting process. A reception operation is performed. Here, by the user operation of closing the hinge part (step 204), the control part 5 reads out from the memory part 8 whether the TV sound setting when the hinge part is closed is ON or OFF, and performs an operation according to each setting. Do.

  When this setting is OFF, the TV power supply control unit 18 stops the power supply to the TV reception circuit block as well as the TV video display stop and TV sound speaker output stop 206 operations. Thereafter, even when the hinge portion is in the open state (step 207), the state transitions to the operation state of the display portion normal display (step 201).

  When this setting is ON, the TV image display unit display continues and the TV audio speaker output continues (step 208). The power supply to the circuit block for TV reception is not stopped, and the power is continuously supplied. . Thereafter, the state changes to the TV video display / TV audio output (step 203) operation state due to the state change of the hinge opening (step 209).

A second embodiment will be described with reference to FIGS. The difference from the first embodiment is that the TV power control unit 48 individually controls the power supply of the TV audio power supply unit 49 and the TV video power supply unit 50.
In the present configuration, the TV video display continuation and TV audio output continuation (step 208) in the operation state when the TV audio setting when the hinge portion is closed in FIG. The control unit 5 performs the operation of stopping the display of the TV image display unit and continuing the output of the TV audio speaker by receiving the signal of closing the hinge unit. Further, the television power control unit 48 performs control to stop the power supply to the television video power supply unit 50 while continuing to supply power to the television audio power supply unit. After that, when the state of the hinge part opening (step 209) changes to the operation state of the display of the television reception video and the output of the television reception audio to the speaker (step 203), the power is supplied to the television video power supply unit 50. At the same time, initial setting processing is performed on the video detection unit 46 and the video signal processing unit 47.

  The TV power supply unit 19 in FIG. 1 is divided into a TV audio power supply unit 49 and a TV video power supply unit 50 in FIG. 3, and the TV power supply control unit 48 controls each power supply. Thus, the current consumption can be reduced in the state of the television video display stop, television video display continuation, and television audio output continuation (step 208) in FIG.

According to the mobile phone with a TV receiving function configured as described above, a folded mobile phone having a function of stopping the video display of the TV signal and maintaining the audio output by placing the telephone in a folded state during TV reception is obtained. It is done.
In addition, the video display on the television is stopped in the folded state, and the video demodulating unit and the video signal processing unit are stopped.
Furthermore, by switching from the folded state to the open state, the video demodulating unit and the video signal processing unit are immediately operated, and the video display of the television that has been stopped is quickly resumed.
The video display of the television signal can be stopped by a KEY operation.

1 is a block diagram illustrating a configuration example of a mobile phone according to a first embodiment. It is the flowchart which showed the operation | movement of the television reception image | video and audio | voice at the time of folding part opening and closing during television reception in a folding telephone. 6 is a block diagram illustrating a configuration example of a mobile phone according to Embodiment 2. FIG.

Explanation of symbols

1, 2 ANT
DESCRIPTION OF SYMBOLS 3 Telephone transmission / reception part 4 Modulation / demodulation part 5 Control part 6 Opening / closing detection part 7 KEY input part 8 Memory part 11 Speaker drive circuit part 12 LCD display control part 13 LCD display part 14 TV receiving part 15 Audio | voice detection part 16 Image | video detection part 17 Video signal processing unit 18 TV power supply control unit 19 TV power supply unit

Claims (6)

An open / close detection unit for detecting opening / closing of the mobile phone;
A television receiver component for receiving television signals;
A TV power control unit that controls power supply to the TV receiving component,
A folding cellular phone comprising a function of stopping video display of the television signal and maintaining audio output by placing the phone in a folded state while receiving the television signal.   The television reception configuration unit includes a video demodulation unit that demodulates video of the television signal and a video signal processing unit that processes the demodulated video signal, and the video demodulation unit in the folded state of the folding mobile phone 2. The folding cellular phone according to claim 1, further comprising a function of controlling power supply to the video signal processing unit to stop video display of the television signal.   By controlling the power supply to the video demodulation unit and the video signal processing unit in the folded state, and stopping the video display of the television signal, the folded state is opened, so that the video of the television signal 3. The folding mobile phone according to claim 2, wherein display can be started.   Controlling power supply to the video demodulation unit and video signal processing unit in the folded state, and stopping the video display of the television signal, the video display of the television signal can be started by a predetermined KEY operation. The folding cellular phone according to claim 2, wherein   5. The control of the power supply is applied to a television display driving unit that drives a television display as a first step, and the start of the video display of the television signal is further accelerated. Folding mobile phone.   The power supply control includes adaptation to the television display driving unit as the first stage and adaptation to the video demodulation unit and video signal processing unit as the second stage, and video display of the television signal 6. The folding cellular phone according to claim 5, wherein a difference is provided in the length of the stop time of the video display at the start of the video.

Images