KR950005628B1 - Pager having clock transferable function - Google Patents
Pager having clock transferable function Download PDFInfo
- Publication number
- KR950005628B1 KR950005628B1 KR1019920016273A KR920016273A KR950005628B1 KR 950005628 B1 KR950005628 B1 KR 950005628B1 KR 1019920016273 A KR1019920016273 A KR 1019920016273A KR 920016273 A KR920016273 A KR 920016273A KR 950005628 B1 KR950005628 B1 KR 950005628B1
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- cpu
- clock
- pager
- low speed
- subclock
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
제1도는 본 발명에 따른 휴대용 무선호출기의 클럭절환구성을 개략적으로 설명하는 블럭도이다.1 is a block diagram schematically illustrating a clock switching configuration of a portable pager according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 수신부 20 : 호출처리부10: receiving unit 20: call processing unit
21 : 제1클럭발생부 22 : 제2클럭발생부21: first clock generator 22: second clock generator
23 : CPU 24 : ROM23: CPU 24: ROM
25 : RAM 30 : 표시부25 RAM 30 Display
본 발명은 휴대용 무선호출기에 관한 것으로, 특히 CPU에 인가되는 클럭을 동작모드에 따라 고속의 클럭과 저속의 클럭으로 절환하여 사용가능하게 함으로써 내장배터리의 전력소모를 줄일 수 있도록 된 휴대용 무선호출기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable pager, and more particularly, to a portable pager that can reduce power consumption of an internal battery by switching a clock applied to a CPU to a high speed clock and a low speed clock according to an operation mode. will be.
종래의 휴대용 무선호출기에서는 수신대기상태와 메시지수신상태, 키입력상태 등 어느 경우에도 CPU가 메인클럭만을 사용하게 되므로, CPU의 클럭속도를 고속으로 할 필요가 없는 수신대기상태에서도 주파수가 높은 클럭을 사용하여 CPU가 동작하게 된다. 이와 같이, 종래의 휴대용 무선호출기내의 CPU는 메시지가 수신되지 않는 대기상태에서도 높은 주파수의 클럭으로 동작하기 때문에, CPU자체의 전류소모량이 많아 동작전원을 제공하는 배터리의 수명이 짧아진다는 문제점이 있었다.In the conventional portable pager, the CPU uses only the main clock in any of the reception standby state, message reception state, and key input state. The CPU will operate. As described above, since a CPU in a conventional portable pager operates at a high frequency clock even in a standby state where a message is not received, the CPU itself consumes a large amount of current and thus shortens the life of a battery providing operating power. .
본 발명은 상기한 점을 감안하여 발명된 것으로, 수신대기상태일 때에는 CPU의 클럭속도를 저속으로 하는 CPU클럭의 절환기능을 갖춤으로써 내장배터리의 전력소비량을 감소시킬 수 있도록 된 휴대용 무선호출기를 제공함에 그 목적이 있다.The present invention has been invented in view of the above, and provides a portable wireless pager that can reduce the power consumption of the internal battery by having a switching function of the CPU clock to lower the clock speed of the CPU when in the standby standby state. Has its purpose.
상기 목적을 달성하기 위한 본 발명의 CPU클럭절환기능을 갖춘 휴대용 무선호출기는, 호출신호를 수신하는 수신부(10)와, 무선호출시스템전체회로의 각 기능을 제어하는 CPU(23) 및, 무선호출시스템의 각 정보를 기억하는 ROM(24)과 RAM(25)을 갖춘 시스템제어부(20) 및 호출메시지의 표시를 위한 표시부(30)로 이루어진 휴대용 무선호출기에 있어서, 상기 시스템제어부(20)에는 각각 고속의 메인클럭과 저속의 서브클럭을 발생하는 제1 및 제2클럭신호발생부(21, 22)를 더 포함하여 구성되어 있으면서 메시지의 수신이나 키입력시에는 고속의 메인클럭으로 상기 CPU(23)가 동작하는 한편, 수신대기상태시에는 저속의 서브클럭으로 상기 CPU(23)가 동작하도록 된 것을 특징으로 한다.The portable radio pager with the CPU clock switching function of the present invention for achieving the above object includes a receiver 10 for receiving a call signal, a CPU 23 for controlling each function of the entire radio call system, and a radio call. In the portable radio pager comprising a system controller 20 having a ROM 24 and a RAM 25 for storing each information of the system, and a display unit 30 for displaying a call message, the system controller 20 is respectively provided in the system controller 20. The first and second clock signal generators 21 and 22 which generate a high speed main clock and a low speed subclock further include the CPU 23 as a high speed main clock when a message is received or a key is input. Is operated, and the CPU 23 is operated at a low speed subclock in the reception standby state.
상기와 같이 구성된 본 발명의 CPU클럭절환기능을 갖춘 휴대용 무선호출기는 CPU의 클럭속도를 빠르게 해야 할 조건, 즉 메시지의 수신시나 키입력시에는 메인클럭으로 CPU를 동작시키는 한편, 수신대기상태등 CPU의 클럭속도가 빠르지 않아도 될 경우에는 메인클럭을 정지시키고 그 대신 클럭속도가 느린 서브클럭으로 CPU를 동작시키도록 하고 있으므로, 항상 빠른 속도의 메인클럭으로 CPU를 동작시키는 종래의 휴대용 무선호출기에 비해 내장배터리의 전력소비를 현저히 감소시킬 수가 있다.The portable wireless pager with the CPU clock switching function of the present invention configured as described above operates the CPU as the main clock when the CPU clock speed is to be increased, that is, when a message is received or a key is input, If the clock speed does not need to be fast, the main clock is stopped, and instead, the CPU is operated by a subclock with a slower clock speed. The battery power consumption can be significantly reduced.
이하, 예시도면을 참조하여 본 발명의 실시예에 대해 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 발명에 따른 휴대용무선호출기의 회로구성을 개략적으로 도시한 블럭도로서, 도면참조부호 10은 소정호출신호를 수신하는 수신부이고, 20은 제1 및 제2발생부(21, 22)와 호출신호를 처리하는 CPU(23), 무선호출기의 동작프로그램이 내장된 ROM(24) 및 데이터의 일시기억을 위한 RAM(25)등으로 구성되어 있으면서 휴대용 무선 호출기의 각 기능을 제어하도록 된 시스템제어부, 30은 호출신호를 송신한 송신처전화번호 및 현재의 시각, 호출신호를 수신한 때의 시각 등을 표시하는 표시부이다.1 is a block diagram schematically showing the circuit configuration of a portable pager according to the present invention, wherein reference numeral 10 is a receiver for receiving a predetermined call signal, and 20 is a first and second generators 21 and 22. And a CPU (23) for processing call signals, a ROM (24) in which an operation program of the pager is embedded, and a RAM (25) for temporary storage of data, and so on, to control each function of the portable pager. The control unit 30 is a display unit for displaying the sender's telephone number and the current time at which the call signal was sent, the time when the call signal was received, and the like.
이러한 구성에서, CPU(23)는 수신대기상태에서는 ROM(24)에 내장된 프로그램에 따라 제2클럭발생부(22)에서 발생된 저속의 클럭신호로 동작하게 되고, 수신부(10)를 통해 호출신호가 수신되어 입력되거나 키입력시에는 제1클럭신호발생부(21)에서 발생되는 고속의 클럭신호로 동작하여 에러없이 호출신호를 처리하여 표시부(30)상에 호출신호가 표시되도록 제어하게 된다.In this configuration, the CPU 23 operates in the reception standby state with a low speed clock signal generated by the second clock generator 22 according to a program embedded in the ROM 24, and is called through the receiver 10. When a signal is received and input or a key is input, the signal is operated by a high-speed clock signal generated by the first clock signal generator 21 to process the call signal without an error so that the call signal is displayed on the display unit 30. .
즉, 상기와 같이 구성된 본 발명에 따른 휴대용 무선호출기의 제1 및 제2클럭신호발생부(21, 22)는 호출신호에 대한 수신대기상태, 즉 호출신호가 수신되지 않을 때에는 저속의 서브클럭으로 CPU(23)가 동작되도록 하고, 호출신호수신상태 또는 키입력상태일 때에는 그 상태를 감지한 후 CPU(23)가 에러없이 데이터를 입력받을 수 있도록 충분히 높은 주파수의 메인클럭으로 CPU(23)가 동작되도록 하게 된다.That is, the first and second clock signal generators 21 and 22 of the portable pager according to the present invention configured as described above are in a standby state for the call signal, that is, when the call signal is not received, the low-speed subclock. When the CPU 23 is operated and the call signal reception state or the key input state is detected, the CPU 23 detects the state and the CPU 23 operates at a main clock of a sufficiently high frequency so that the CPU 23 can receive data without error. It will work.
이상 설명한 바와 같이 본 발명에 따르면, 수신대기상태인 경우에는 낮은 주파수의 클럭으로 CPU를 동작시키는 한편 호출신호수신상태 또는 키입력상태 등 CPU가 데이터를 받아들여야 할 경우에만 높은 주파수의 클럭으로 CPU를 동작시키도록 된 CPU클럭절환기능을 갖춤으로써 내장 배터리의 전력소비를 감소시킬 수 있는 휴대용 무선호출기를 제공할 수가 있다.As described above, according to the present invention, the CPU operates the CPU at a low frequency clock while the CPU is operating at a high frequency clock only when the CPU needs to receive data such as a call signal reception state or a key input state. By having a CPU clock switching function to operate, it is possible to provide a portable wireless pager that can reduce the power consumption of the internal battery.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920016273A KR950005628B1 (en) | 1992-09-07 | 1992-09-07 | Pager having clock transferable function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920016273A KR950005628B1 (en) | 1992-09-07 | 1992-09-07 | Pager having clock transferable function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940008287A KR940008287A (en) | 1994-04-29 |
| KR950005628B1 true KR950005628B1 (en) | 1995-05-27 |
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ID=19339188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920016273A KR950005628B1 (en) | 1992-09-07 | 1992-09-07 | Pager having clock transferable function |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950005628B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100650246B1 (en) * | 2004-08-03 | 2006-11-24 | 주식회사 팬택앤큐리텔 | Apparatus for increasing in operation speed of handset |
| WO2010053224A1 (en) * | 2008-11-05 | 2010-05-14 | Kyung Min Kim | Vehicle bed cover and method for opening and closing the same |
-
1992
- 1992-09-07 KR KR1019920016273A patent/KR950005628B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100650246B1 (en) * | 2004-08-03 | 2006-11-24 | 주식회사 팬택앤큐리텔 | Apparatus for increasing in operation speed of handset |
| WO2010053224A1 (en) * | 2008-11-05 | 2010-05-14 | Kyung Min Kim | Vehicle bed cover and method for opening and closing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940008287A (en) | 1994-04-29 |
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