KR0144202B1 - Transmitting power control - Google Patents
Transmitting power controlInfo
- Publication number
- KR0144202B1 KR0144202B1 KR1019950018310A KR19950018310A KR0144202B1 KR 0144202 B1 KR0144202 B1 KR 0144202B1 KR 1019950018310 A KR1019950018310 A KR 1019950018310A KR 19950018310 A KR19950018310 A KR 19950018310A KR 0144202 B1 KR0144202 B1 KR 0144202B1
- Authority
- KR
- South Korea
- Prior art keywords
- field strength
- receiving
- inverting
- amplifying
- signal
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/13—Monitoring; Testing of transmitters for calibration of power amplifiers, e.g. gain or non-linearity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Nonlinear Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
본 발명은 통신기기의 자동송신출력 조절장치에 관한 것이다.The present invention relates to an automatic transmission output control apparatus of a communication device.
종래 통신기기의 송신출력 조절장치는 연속성을 갖지 않는 하이 및 로우상태로 조절하므로서, 연속적으로 조절되는 방식보다는 전체적으로 소모전류가 많게 되는 문제점이 있었다.The transmission output control device of the conventional communication device has a problem in that the current consumption is increased as a whole, rather than continuously controlled by adjusting the high and low state does not have continuity.
따라서 본 발명은 상기한 종래기술의 문제점을 개선코자 하여 수신부의 동작레벨설정을 다이오드를 이용하여 기준전압을 설정하고 동작범위를 연산증폭기의 이득을 조절하여 범위를 설정하므로서, 수신전계강도가 높은 근거리 통화시 송신출력을 자동으로 조절함에 따라 소모전류가 감소되어 밧데리 사용시간을 연장시킬뿐만 아니라, 타무선전화기와의 간섭영향도 감소시키도록 한 것이다.Therefore, the present invention is to improve the above-mentioned problems of the prior art by setting a reference voltage using a diode to set the operation level of the receiver using a diode and the operating range by adjusting the gain of the operational amplifier, thereby establishing a near field high in intensity. By automatically adjusting the transmission power during a call, the current consumption is reduced, which not only prolongs the battery usage time but also reduces the influence of interference with other wireless telephones.
Description
제 1 도는 종래 통신기기의 송신출력 조절장치의 블럭 구성도.1 is a block diagram of a transmission output control apparatus of a conventional communication device.
제 2 도는 본 발명에 의한 통신기기의 자동 송신출력 조절장치의 블럭 구성도.2 is a block diagram of an automatic transmission output control apparatus of a communication device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 수신수단 20 : 수신전계강도 비교검출수단10: receiving means 20: receiving field strength comparison detection means
30 : 반전 증폭수단 40 : 전류 증폭수단30: inverting amplifying means 40: current amplifying means
50 : 스위칭부 60 : 중앙처리장치50: switching unit 60: central processing unit
본 발명은 통신기기에 관한 것으로서, 특히 수신부의 동작레벨 설정시 다이오드를 이용하여 기준전압을 설정하고 동작범위는 연산증폭기의 이득을 조절하여 범위를 설정함으로써, 밧데리의 사용시간을 연장하도록 하는 통신기기의 송신출력 조절장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device, and more particularly, to set a reference voltage using a diode when setting an operation level of a receiver and to set an operation range by adjusting a gain of an operational amplifier, thereby extending the use time of a battery. It relates to a transmission output control device of.
종래 통신기기의 송신출력 조절장치는 제1도에 도시한 바와 같이 안테나를 통해 수신된 신호의 수신전계강도(RSS1)를 검출하는 수신부(1)와, 상기 수신부(1)로부터 출력된 신호와 기 설정된 기준전압과 비교하여 송신 출력을 조절하는 비교부(2)와, 상기 비교부(2)로부터 출력된 송신출력 조절신호에 따라 안테나를 통해 출력할 고주파신호를 조절하는 송신신호 조절부(3)로 구성되어져 있다.As shown in FIG. 1, a transmission power adjusting device of a conventional communication device includes a receiver 1 for detecting a received electric field strength RSS1 of a signal received through an antenna, a signal outputted from the receiver 1, A comparison unit (2) for adjusting a transmission output in comparison with a set reference voltage, and a transmission signal adjustment unit (3) for adjusting a high frequency signal to be output through an antenna according to a transmission output control signal output from the comparison unit (2) It consists of.
이와 같이 구성된 종래 통신기기의 송신출력 조절장치는 안테나(ANT)를 통해 고주파 신호를 수신하게 되면 수신부(2)에서는 이를 증폭, 변환, 복조함과 아울러 수신전계강도(RSS1)를 검출하게 된다.When the transmission power adjusting device of the conventional communication device configured as described above receives a high frequency signal through the antenna ANT, the receiving unit 2 amplifies, converts, demodulates, and detects the received electric field strength RSS1.
비교부(2)에서는 상기 수신부(2)에서 검출한 수신전계강도와 기 설정되어 있는 기준전압을 비교하여 송신출력을 조절하는 제어신호(CTL)를 하이(H) 및 로우(L)상태로 조절하게 된다.The comparing unit 2 compares the received electric field strength detected by the receiving unit 2 with a preset reference voltage and adjusts the control signal CTL for adjusting the transmission output to high (H) and low (L) states. Done.
그러나 이와 같은 종래 통신기기의 송신출력 조절장치는 연속성을 갖지 않는 하이 및 로우상태로 조절하므로서, 연속적으로 조절되는 방식보다는 전체적으로 소모전류가 많게 되는 문제점이 있었다.However, the transmission output control device of such a conventional communication device has a problem that the current consumption is increased as a whole in the high and low state does not have a continuity, rather than a continuously controlled method.
따라서 본 발명은 상기한 종래기술의 문제점을 개선코자 하여 수신부의 동작레벨 설정을 다이오드를 이용하여 기준전압을 설정하고 동작범위를 연산증폭기의 이득을 조절하여 범위를 설정하므로서, 수신전계강도가 높은 근거리 통화시 송신출력을 자동으로 조절함에 따라 소모전류가 감소되어 밧데리 사용시간을 연장시킬뿐만 아니라, 타무선전화기와의 간섭 영향도 감소시키도록 하는 통신기기의 자동 송신출력 조절장치를 제공함에 그 목적이 있다.Therefore, the present invention is to improve the above problems of the prior art by setting a reference voltage using a diode to set the operating level of the receiver using a diode and the operating range by adjusting the gain of the operational amplifier, thereby providing a high near field strength. The purpose of the present invention is to provide an automatic transmission output control device of a communication device that reduces power consumption by reducing the current consumption by automatically adjusting the transmission power during a call, as well as reducing the influence of interference with other wireless telephones. have.
상기한 목적을 달성하기 위한 본 발명의 구성을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Referring to the configuration of the present invention for achieving the above object in detail based on the accompanying drawings as follows.
제2도는 본 발명에 의한 통신기기의 자동 송신출력 조절장치 블럭 구성도로서, 이에 도시한 바와 같이 안테나(ANT)를 통해 수신된 고주파신호를 증폭, 변환, 복조함과 아울러 수신전계강도(RSS1)에 대한 신호를 발생하는 수신수단(10)과, 상기 수신수단(10)으로부터 출력된 수신전계강도가 기준전압 이상일 경우 이를 검출하는 수신전계강도 비교검출수단(20)과, 상기 수신전계강도 비교검출수단(20)으로부터 출력된 신호를 반전 증폭시키는 반전 증폭수단(30)과, 상기 반전 증폭수단(30)으로부터 출력된 전류를 증폭함과 아울러 송신할 고주파 신호의 증폭을 제어하는 전류 증폭수단(40)과, 상기 전류 증폭수단(40)으로부터 출력된 신호에 따라 송신할 고주파신호를 증폭하는 제1, 제2증폭기(71)(72)와, 상기 수신전계강도 비교검출수단(20)에서 반전 증폭수단(30)으로 입력되는 신호를 중앙처리장치(60)의 제어신호에 따라 스위칭하는 스위칭부(50)와, 상기 스위칭부(50)를 제어함과 아울러 수신 데이터를 수신수단(10)으로부터 입력받아 처리하는 중앙처리장치(50)로 구성된다.2 is a block diagram of an automatic transmission output control device for a communication device according to the present invention. As shown therein, amplification, conversion, and demodulation of a high frequency signal received through an antenna ANT as well as a received electric field strength (RSS1) Receiving means (10) for generating a signal for receiving, receiving field strength comparison detecting means 20 for detecting when the received field strength output from the receiving means 10 or more than the reference voltage, and the received field strength comparison detection Inverting-amplifying means 30 for inverting and amplifying the signal output from the means 20, and current amplifying means 40 for amplifying the current output from the inverting amplifying means 30 and controlling amplification of the high frequency signal to be transmitted. And the first and second amplifiers 71 and 72 for amplifying the high frequency signal to be transmitted according to the signal output from the current amplifying means 40, and the inverted amplification in the receiving field strength comparison detecting means 20. By means 30 A switching unit 50 for switching the input signal according to a control signal of the central processing unit 60, and a central processing unit for controlling the switching unit 50 and receiving and processing received data from the receiving unit 10. Device 50.
여기서 수신전계강도 비교검출수단(20)은 입력된 수신전계강도 전압이 소정레벨 이상일 경우에만 전류를 통과시키는 제너 다이오드(D1)와, 상기 제너 다이오드(D1)의 애노드측에 연결된 제1저항(R1)으로 구성된다.Here, the reception field strength comparison detecting unit 20 passes a current only when the received field strength voltage is higher than or equal to a predetermined level, and a first resistor R1 connected to the anode side of the zener diode D1. It is composed of
또한, 상기 반전 증폭수단(30)은 수신신호의 증폭이득을 조절하는 제4, 제5저항(R4)(R5)과, 상기 제4, 제5저항(R4)(R5)의 설정값에 따라 입력신호를 반전증폭하는 반전증폭기(31)로 구성된다.In addition, the inverting and amplifying means 30 according to the set values of the fourth and fifth resistors R4 and R5 and the fourth and fifth resistors R4 and R5 for adjusting the amplification gain of the received signal. And an inverting amplifier 31 for inverting and amplifying the input signal.
이와 같이 구성된 본 발명의 작용, 효과를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.The operation and effects of the present invention configured as described above will be described in detail with reference to the accompanying drawings.
본 발명은 전화기의 휴대장치를 이용하여 통화하고자 할 때 통화버튼을 누르면 휴대장치는 고정장치에 데이타신호를 전송하게 되며, 이와 동시에 중앙처리장치(60)의 제어단자(P1)는 하이(H)상태의 제어신호(CTL)를 출력하게 된다.According to the present invention, when the user presses a call button to make a call using the mobile device of the phone, the mobile device transmits a data signal to the fixed device, and at the same time, the control terminal P1 of the central processing unit 60 is high (H). The control signal CTL of the state is output.
상기 하이상태의 신호를 받아 스위칭부(50)내의 제2트랜지스터(Q2)는 온상태가 되어 반전 증폭기(31)의 반전(-)입력을 로우상태로 만든다.In response to the signal in the high state, the second transistor Q2 in the switching unit 50 is turned on to make the inverting (−) input of the inverting amplifier 31 low.
따라서 반전 증폭기(31)의 출력단에는 하이신호가 출력되어 제1트랜지스터(Q1)가 온 되도록 그의 출력단은 최대(Vcc)가 되며, 최대 출력전압은 제1, 제2증폭기(71)(72)의 출력은 최대가 되어 안테나(ANT)를 통해 방사하게 된다.Therefore, a high signal is output to the output terminal of the inverting amplifier 31 so that the output terminal thereof is the maximum (Vcc) so that the first transistor Q1 is turned on, and the maximum output voltage of the first and second amplifiers 71 and 72 is increased. The output is at its maximum and radiates through the antenna ANT.
휴대장치의 데이터신호를 받은 고정장치는 휴대장치로부터 신호를 받았다는 데이타 신호를 휴대장치로 전송하므로 휴대장치는 통화상태로 들어가게 된다.Since the fixed device receiving the data signal of the portable device transmits the data signal indicating that the signal is received from the portable device, the portable device enters a call state.
이때 중앙처리장치(60)의 제어단자(P1)신호는 로우상태로 되고 따라서 스위칭부(50)는 오프상태가 되어 반전 증폭수단(30)은 수신전계강도에 따라 동작을 하게 된다.At this time, the control terminal (P1) signal of the central processing unit 60 goes low, and thus the switching unit 50 is turned off so that the inverting amplifying means 30 operates according to the received electric field strength.
수신수단(10)으로부터 발생된 전계강도신호 출력은 제너 다이오드(D1)에 의해 설정된 기준전압 이상일때는 제너 다이오드는 도통상태가 되고 출력전압은 수신전계강도 전압에서 기준전압을 감산한 전압의 상태가 된다.When the electric field strength signal output from the receiving means 10 is equal to or higher than the reference voltage set by the zener diode D1, the zener diode is in a conductive state and the output voltage is in a state of subtracting the reference voltage from the received electric field intensity voltage. .
수신전계강도 신호는 수신신호와 비례하는 기울기를 가진 출력전압이 발생되고 이 비례하는 출력신호는 수신전계강도 비교검출수단(20)의 수신 전계강도가 약하면 출력전압은 최대가 된다.The received electric field strength signal generates an output voltage having a slope proportional to the received signal, and this proportional output signal becomes maximum when the received electric field strength of the received electric field strength comparison detecting means 20 is weak.
상기 반전 증폭기(31)의 출력은 전류 증폭수단(40)에서 전류증폭이 되고 이 출력은 제1, 제2증폭기(71), (72)의 송신출력을 조절하게 되고 근거리 통화시에는 송신출력을 낮게하여 밧데리의 소모전류를 줄인다.The output of the inverting amplifier 31 becomes a current amplification in the current amplifying means 40, and this output adjusts the transmission outputs of the first and second amplifiers 71 and 72, and the transmission output in the short distance communication. Low to reduce the current consumption of the battery.
이상에서 설명한 바와 같이 본 발명은 수신전계강도가 높은 근거리 통화시 송신출력을 자동으로 조절함에 따라 소모전류가 감소되어 밧데리 사용시간을 연장시킬 수 있을 뿐만 아니라, 타 무선전화기와의 간섭 영향도 감소시킬 수가 있어 제품의 성능향상을 도모할 수 있는 효과가 있다.As described above, according to the present invention, the current consumption is reduced by automatically adjusting the transmission power in a short distance call with a high reception electric field strength, which can prolong the battery usage time and reduce the influence of interference with other wireless telephones. As a result, the performance of the product can be improved.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950018310A KR0144202B1 (en) | 1995-06-29 | 1995-06-29 | Transmitting power control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950018310A KR0144202B1 (en) | 1995-06-29 | 1995-06-29 | Transmitting power control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970004378A KR970004378A (en) | 1997-01-29 |
| KR0144202B1 true KR0144202B1 (en) | 1998-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950018310A KR0144202B1 (en) | 1995-06-29 | 1995-06-29 | Transmitting power control |
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| Country | Link |
|---|---|
| KR (1) | KR0144202B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000061245A (en) * | 1999-03-24 | 2000-10-16 | 서평원 | power saving apparatus of DECT terminal |
| KR100362450B1 (en) * | 1999-09-07 | 2002-11-23 | 알프스 덴키 가부시키가이샤 | Curcuit for detecting output power of transmitter |
-
1995
- 1995-06-29 KR KR1019950018310A patent/KR0144202B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000061245A (en) * | 1999-03-24 | 2000-10-16 | 서평원 | power saving apparatus of DECT terminal |
| KR100362450B1 (en) * | 1999-09-07 | 2002-11-23 | 알프스 덴키 가부시키가이샤 | Curcuit for detecting output power of transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970004378A (en) | 1997-01-29 |
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