CN1040825C

CN1040825C - Selective pager with displaying function

Info

Publication number: CN1040825C
Application number: CN93117310A
Authority: CN
Inventors: 铃木徹
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1993-09-07
Filing date: 1993-09-07
Publication date: 1998-11-18
Anticipated expiration: 2013-09-07
Also published as: CN1100245A

Abstract

The present invention relates to a selective call receiver with a display function. When a display (8) displays an initial part of information, the rolling control of a reverse rolling switch (120) is invalid, the reverse rolling switch is used as a backlight lamp switch, and a backlight lamp (90) is lightened by the control of a decoder (40). When the initial part of the information is not displayed, the reverse rolling switch (120) controls reverse rolling. The extinguishing of the backlight lamp (90) and the stop of the display function of the information can be carried out simultaneously by the control of the decoder (40). Thereby, the miniaturization of receivers and the compactness of switch operation are realized, and the present invention is suitable for the field of communication.

Description

Selective call receiver with Presentation Function

The present invention relates to have the selective call receiver of Presentation Function.

Fig. 4 is the block diagram of the selective call receiver with Presentation Function in the past.The 1st, reception antenna, the 2nd is with the amplification that receives radio signals, frequency conversion, demodulation and make it to become the radio part of baseband signal.The 3rd, will be transformed into the waveform shaping part of digital signal through demodulated baseband signal.The 4th, decoder, be used for carrying out the control synchronous, selective calling signal and information signal with received signal reception control, call out singing control, error correction and display part control and ROM read control etc.The 5th, the call number of storage receiver and the ROM of each function information of receiver.The 7th, notice has the loud speaker of calling, and the 6th, the amplifier section of driving loud speaker.The 8th, the display of demonstration reception information etc., the 9th, the backlight of illuminated displays 8.The 10th, the backlight switch that makes backlight 9 light or extinguish.The 11st, make the forward scrolling switch of information forward scrolling shown on the display 8, the 12nd, make the reverse scrolling switch of the reverse scrolling of above-mentioned information.The 13rd, be used to call out that singing resets, information is read to start again and the button slide switch of power supply on/off.The 14th, as the battery of receiver power supply.

The reception work of the selective call receiver with Presentation Function that is made of said modules and the illumination control of display 8 below are described.Selective calling signal and information signal that reception antenna 1 is received are transformed into digital signal after radio part 2 and waveform shaping part 3.Decoder 4 is made comparisons this digital signal and the call number that is stored in the ROM5.When the two is consistent, will calls out singing signal and send enlarging section 6, make loud speaker 7 singings.By information signal being sent to display 8, can demonstrate information again.The content of this information can be stored in the decoder 4, lifts button slide switch 13 again and can read again.The shown number of words of being longer than display 8 when information, can not be under once showing confirmation in full the time, can make information forward scrolling come confirmation full text by press forward scrolling switch 11.

In addition, in order to reaffirm the beginning part of information from the state of the end of message, can utilize reverse scrolling switch 12 that information is rewinded.When in the dark confirming the shown information content of display 8, can be by pressing the backlight switch, after being lighted, backlight 9 carries out.

Yet there is such problem in the above-mentioned selective call receiver that in the past had Presentation Function: in order in the dark to confirm the display message content, must have backlight, for the light on and off of controlling backlight need the backlight switch again.This backlight switch needs very large space during practical set, hinder the miniaturization of receiver.

In addition, the element unit price of backlight switch also becomes the high key factor of receiver cost.And functional switch is many can to bring severely restricts to appearance design, and switching manipulation simultaneously is also loaded down with trivial details.

The objective of the invention is to address the above problem, provide a kind of and can realize miniaturization and the good selective call receiver of switching manipulation with Presentation Function.

The present invention allows scrolling switch double as control the switch of display backlight for achieving the above object.

The present invention is by allowing the switch of scrolling switch double as display backlight lamp switch, and to the lighting and extinguish and do decoder control of backlight, seeks receiver miniaturization and switching manipulation simplicity.

Fig. 1 is the block diagram of expression embodiment of the invention structure.Among Fig. 1,1 is reception antenna, and 2 is the radio part, and 3 are the waveform shaping part.The 40th, the decoder of interpolation backlight lamp control circuit and drive circuit.5 is ROM, and 6 is drive circuit, and 7 is loud speaker, and 8 is display, the 90th, and by the backlight of decoder control and driving.11 is forward scrolling switch, the 120th, and reverse scrolling switch, it also has backlight and lights function except having reverse rolling function.13 is the button slide switch, and 14 is battery.

The below work of explanation present embodiment.Receive at receiver under the situation of selective calling signal and information signal, in the time of perhaps in information deposits decoder 40 in, press under the situation of switch 13, can display message on the display 8.The information content is " ABCDEFGHIJKLMNOPQRST " 20 words, and the shown number of words of display 8 is only during 12 words, and the demonstration of display 8 as shown in Figure 2.At this moment, by pressing forward scrolling switch 11, the demonstration of display 8 is become shown in Figure 3, just can confirm all the other information " MNOPQRST " of failing to show.If under Fig. 3 state, want the beginning part of the information of reaffirming, then can be by by reverse scrolling switch 120, it is such that the demonstration of display 8 is become Fig. 2 once more, thus the beginning part that can confirmation.

Under Fig. 2 state, owing to be the beginning part of information, even, can not make reverse scrolling by reverse scrolling switch 120 yet.What replace this scrolling work is that by reverse scrolling switch 120, then backlight 90 is lighted under Fig. 2 state.That is to say that the reverse scrolling switch 120 under Fig. 2 state does not play the scrolling switch, but is used as backlight switch usefulness, press this switch after, just be subjected to decoder control, drive, backlight 90 is lighted.By reverse scrolling switch 120, backlight does not work, and does common converse scrolling under the state beyond Fig. 2.Utilize the control of decoder 40, the information of extinguishing with display 8 that can carry out backlight 90 simultaneously stops to show.Receive at receiver under the situation of selective calling signal and information signal, perhaps when information deposits decoder 40 in, press under the situation of switch 13, the demonstration of display 8 must be from the beginning part of information.This moment, the ambient light deficiency then can allow backlight 90 light, the confirmation content by by reverse scrolling switch 120.

As mentioned above, the present invention allows the backlight switch of scrolling switch double as display, the lighting and extinguish and make by decoder control of backlight, has obtained the effect of receiver miniaturization and switching manipulation simplicity.

Fig. 1 is the block diagram with selective call receiver of Presentation Function of the present invention;

Fig. 2 is the demonstration example of display;

Fig. 3 is the demonstration example of display;

Fig. 4 is the block diagram of the selective call receiver with Presentation Function in the past.

1: reception antenna, 2: radio part, 3: waveform shaping part, 5:ROM, 6: amplifier section, 7: loud speaker, 8: display, 11: forward scrolling switch, 13: the button slide switch, 14: battery, 40: decoder, 90: backlight, 120: reverse scrolling switch.

Claims

1. selective call receiver with Presentation Function, has display, make the scrolling switch and the backlight of the reverse scrolling of display frame, it is characterized in that: under display display message the beginning part situation, described scrolling switch is worked as the backlight switch.