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Radio call selecting receiver

A receiver and selective call technology, applied in the field of visual notification methods and systems, can solve the problems of high power loss, inability to provide sufficient information for users, unfavorable radio system characteristics, etc.

Inactive Publication Date: 2004-07-07
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a large power loss is required when the LED blinking circuit drives the LED to blink intermittently, which is a heavy burden on the small-capacity battery installed in the pager
Also, electromagnetic noise generated when the voltage is boosted by the booster coil may adversely affect the characteristics of the radio system in the pager
Also, since the LED blinking is only visible in a very limited area, it does not provide enough information to the user

Method used

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  • Radio call selecting receiver
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Examples

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Embodiment Construction

[0032] Referring to FIG. 1 , the radio selective calling receiver includes a radio system module 10 , a control unit 11 , a color LCD unit 12 , a notification unit 13 and an input keypad 14 . The radio system module 10 includes a built-in antenna, a radio receiver 101 and a waveform shaping circuit 102 . The radio receiver 101 receives a digitally modulated radio signal from a radio base station (not shown) of a selective call system through a built-in antenna. The radio receiver 101 also includes a digital demodulator for demodulating received radio signals into baseband signals. After the waveform of the baseband signal is shaped by the waveform shaping circuit 102, the wave shaped signal is transmitted from the radio system module 10 to the decoder controller (or communication controller) 103 of the control unit 11 as a selective call signal.

[0033] The decoder controller 103 receives the selective call signal from the waveform shaping circuit 102 and decodes it into rec...

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PUM

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Abstract

A selective calling receiver previously stores a plurality of visual patterns which are different in area from each other on screen. A counter function counts the number of times a single message was received for a predetermined period and then, according to the number of times the single message was received, a single visual pattern is selected from the stored visual patterns. The single message is displayed with the single visual pattern on screen. The visual pattern is preferably displayed with a selected attribute such as color and / or blinking cycle which are determined according to the number of times the single message was received.

Description

technical field [0001] The present invention generally relates to a radio selective calling machine with a display, and more particularly to a visual notification method and system for notifying a user of information through a display. Background technique [0002] BACKGROUND OF THE INVENTION Selective calling receivers have been widely used for various purposes, and in particular, a small and light selective calling receiver called a pager is suitable for carrying on the road. One of the basic functions of a selective call receiver is to indicate an incoming call by beep, vibration, or light, and then display the received message on a liquid crystal display (LCD) according to the user's key operation. [0003] Some selective call receivers have an LED (Light Emitting Diode) blinking circuit that is used as a visual notification device. The LED blinking circuit consists of an LED and a boost coil connected in parallel. The boost coil is used to increase the voltage across ...

Claims

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Application Information

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IPC IPC(8): H04W88/02G08B5/22
CPCG08B5/229
Inventor 曾根智史
Owner NEC CORP
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