KR970063996A - Multi-channel wireless paging terminal and data transmission method - Google Patents

Multi-channel wireless paging terminal and data transmission method Download PDF

Info

Publication number
KR970063996A
KR970063996A KR1019960004713A KR19960004713A KR970063996A KR 970063996 A KR970063996 A KR 970063996A KR 1019960004713 A KR1019960004713 A KR 1019960004713A KR 19960004713 A KR19960004713 A KR 19960004713A KR 970063996 A KR970063996 A KR 970063996A
Authority
KR
South Korea
Prior art keywords
signal
frequency
paging terminal
wireless paging
filter
Prior art date
Application number
KR1019960004713A
Other languages
Korean (ko)
Other versions
KR100199253B1 (en
Inventor
이한선
김영삼
Original Assignee
정의진
서울이동통신 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정의진, 서울이동통신 주식회사 filed Critical 정의진
Priority to KR1019960004713A priority Critical patent/KR100199253B1/en
Publication of KR970063996A publication Critical patent/KR970063996A/en
Application granted granted Critical
Publication of KR100199253B1 publication Critical patent/KR100199253B1/en

Links

Classifications

    • 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
    • H04W88/022—Selective call receivers
    • H04W88/023—Selective call receivers with message or information receiving capability
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/0802—Details of the phase-locked loop the loop being adapted for reducing power consumption

Abstract

본 발명은 다량의 데이터를 수신하기 위한 다채널 무선호출 단말기를 제공하기 위한 것으로서, 한 무선호출단말기내에 다수의 PLL(phase-locked loop)을 두어 각 PLL이 각기 다른 주파수의 신호를 받아드리게 한다. 따라서 다량의 데이터를 신속하게 받고, 메세지 수신 알림 회수를 줄임으로써 배터리의 소비를 감소시킨다. 또한 PC의 전원을 필요할 때에 온시킴으로써 PC를 항상 온시킬 필요가 없다.The present invention provides a multi-channel pager for receiving a large amount of data. A plurality of PLLs (phase-locked loops) are provided in one paging terminal so that each PLL receives signals of different frequencies. Thus reducing the consumption of battery by receiving large amounts of data quickly and reducing the number of message reception notifications. Also, by turning on the power of the PC when necessary, it is not necessary to always turn on the PC.

Description

다채널 무선호출 단말기 및 데이터 전송방법Multi-channel wireless paging terminal and data transmission method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 무선호출 단말기의 개략적인 구성도.FIG. 1 is a schematic configuration diagram of a paging terminal of the present invention; FIG.

Claims (8)

수신된 RF 신호를 증폭하는 초단앰프와, 대역통과 필터를 이용하여 영상신호 등의 방해신호를 제거하는 고주파채널필터와, MPU에서 공급되는 데이터에 의하여 동작하여 발진된 주파수의 3차 하모닉 주파수로 튜닝시키고 발진주파수의 3차 하모닉을 제외한 다른 성분 등을 제거하며 2배 체배하여 신호를 생성하는 동시에 불필요한 다른 고주파성분을 여과하는 PLL과, 상기 고주파채널필터로부터 입력된 신호와 PLL로부터 발진된 신호를 혼합하여 21.4MHZ의 제1중간주파수로 변환시키는 1차먹서와, 상기 1차먹서(4)에서 혼합시 발생되는 여러 주파수 성분중에서 21.4MHZ의 신호만을 선택하여 제2중간주파수필터로 인가시키며 채널신호 이외의 방해신호를 배제하는 1차중간주파수필터와, 상기 1차중간주파수신호와 2차국부발진기(21)로부터 20.945MHZ의 발진주파수신호를 혼합하여 2차중간주파수로 변환하는 2차먹서와, 455KHZ의 2차중간주파수로 변환시키는 2차중간주파수필터(7)와, 신호를 복조하는 복조부와, 복조된 신호에서 원래의 데이터를 추출하여 이를 MPU에 보내는 디코더와, 무선호출 단말기의 통신을 제어, 관장하는 MPU로 구성된 다채널 무선호출 단말기.A high-frequency channel filter for removing interference signals such as a video signal by using a band-pass filter, a tuner for a third-harmonic frequency of the oscillation frequency generated by the data supplied from the MPU, A PLL for filtering out unnecessary other high frequency components while removing other components except for the third harmonic of the oscillation frequency and doubling the signal to generate a signal and mixing the signal input from the high frequency channel filter and the signal oscillated from the PLL and to from a number of frequency components that are generated during the mixing in the primary meokseo for converting a first intermediate frequency of 21.4MH Z, the primary meokseo (4) selects only the signal of 21.4MH Z sikimyeo applied to the second intermediate frequency filter channels first intermediate frequency filter and the first intermediate frequency signal and the second oscillation of 20.945MH Z from the local oscillator 21 frequency to rule out the interference signal other than the signal By mixing the signal from the demodulator and a demodulated signal for demodulating the second intermediate frequency filter 7, the signal to convert the secondary meokseo to convert the second intermediate frequency, the second center frequency of the 455KH Z original A decoder for extracting the data and sending it to the MPU, and an MPU for controlling and managing the communication of the paging terminal. 제1항에 있어서, 상기 초단앰프, 고주파채널필터, PLL, 1차먹서, 1차중간주파수필터, 2차먹서, 2차중간주파수필터, 복조와 디코더는 조합으로서 복수인 것을 특징으로 하는 다채널 무선호출 단말기.The receiver of claim 1, wherein the first stage amplifier, the high-frequency channel filter, the PLL, the first-order mixer, the first intermediate frequency filter, the second-order mixer, the second intermediate frequency filter, Wireless paging terminal. 제2항에 있어서, 필요한 조합이외에 예비로 한 조합을 더 구비하는것을 특징으로 하는 다채널 무선호출 단말기.The multi-channel wireless paging terminal according to claim 2, further comprising a spare combination other than the required combination. 제1항에 있어서, PC전원에 의하여 충전되는 배터리를 갖춘 것을 특징으로 하는 다채널 무선호출 단말기.The multi-channel wireless paging terminal of claim 1, further comprising a battery charged by a PC power source. 제1항에 있어서, PC전원을 제어하는 PC전원제어부를 갖춘 것을 특징으로 하는 다채널 무선호출 단말기.The multi-channel wireless paging terminal of claim 1, further comprising a PC power control unit for controlling the PC power. 제1항에 있어서, 수신한 데이터를 PC의 버스에 전달하기 위한 PC버스인터페이스부를 갖춘 것을 특징으로 하는 다채널 무선호출 단말기.The multi-channel wireless paging terminal according to claim 1, further comprising a PC bus interface unit for transmitting the received data to a bus of the PC. 제1항에 있어서, 외부에 안테나를 갖춘 것을 특징으로 하는 다채널 무선호출 단말기.The multi-channel wireless paging terminal according to claim 1, wherein an external antenna is provided. 다채널 무선호출 단말기를 통하여 데이터를 수신하는 방법에 있어서, 무선호출 중앙센터는 동일한 데이터를 적어도 2회 이상 전송하고, 데이터를 받은 무선호출 단말기는 수신된 데이터에 이상이 있는 경우에 다채널 무선호출 단말기의 다수의 수신부를 이미 세트되어 있는 수신 주파수 크기 순서를 역으로 하여 세트하는 것을 특징으로 하는 다채널 무선호출 단말기.A method for receiving data via a multi-channel wireless paging terminal, the wireless paging center transmitting at least two or more times the same data, and the wireless paging terminal receiving the data, Wherein the plurality of reception units of the terminal are set by reversing the reception frequency magnitude order already set. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960004713A 1996-02-27 1996-02-27 Multi-channel wireless pager and data transmission method KR100199253B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960004713A KR100199253B1 (en) 1996-02-27 1996-02-27 Multi-channel wireless pager and data transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960004713A KR100199253B1 (en) 1996-02-27 1996-02-27 Multi-channel wireless pager and data transmission method

Publications (2)

Publication Number Publication Date
KR970063996A true KR970063996A (en) 1997-09-12
KR100199253B1 KR100199253B1 (en) 1999-06-15

Family

ID=19451824

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960004713A KR100199253B1 (en) 1996-02-27 1996-02-27 Multi-channel wireless pager and data transmission method

Country Status (1)

Country Link
KR (1) KR100199253B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100298173B1 (en) * 1998-07-16 2001-08-07 조정남 Apparatus and method for receiving multi-channel paging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100298173B1 (en) * 1998-07-16 2001-08-07 조정남 Apparatus and method for receiving multi-channel paging

Also Published As

Publication number Publication date
KR100199253B1 (en) 1999-06-15

Similar Documents

Publication Publication Date Title
US6175746B1 (en) Multiband mobile unit communication apparatus
JPH09275358A (en) Plural-band mobile radio equipment
JPH10511834A (en) Receiver circuit
US5603097A (en) Digital radio system capable of high-speed frequency changing at low power consumption
KR100216351B1 (en) Transmitter and receiver of spread spectrum communication
KR20100111616A (en) Fsk modulation signal receiver with high sensitivity in low rate mode
US6021164A (en) Digital radio communication system having reduced phase-locked loop, and its synchronization
AU748662B2 (en) Direct conversion receiver pre-selection
KR100186789B1 (en) Method of receiving data signals in a radio transceiver using low cost components
KR100350035B1 (en) Tuner for receiving satellite broadcasting
JPH07231273A (en) Tuner for receiving satellite broadcast
JPH04160926A (en) Transmitter-receiver
JP3589886B2 (en) Broadcast receiver
KR970063996A (en) Multi-channel wireless paging terminal and data transmission method
US6026114A (en) Transmitting and receiving apparatus of time division full-duplex spread spectrum communication system
JP2003198402A (en) Receiver
KR200144593Y1 (en) Cable TV Tuning Equipment
JPH07250005A (en) Fm receiver
JPH05300044A (en) Command receiver
KR0121516Y1 (en) A tuner circuit of multi broadcasting form
JPS617733A (en) Receiving device
KR19980041032A (en) High frequency transceiver circuit for outgoing telephone
JPH07303059A (en) Radio equipment
KR970004658Y1 (en) Tuner for satellite broadcasting system
JPH0127301Y2 (en)

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee