KR100904672B1 - Rfid 리더의 송수신기 및 송신출력신호 보정방법 - Google Patents
Rfid 리더의 송수신기 및 송신출력신호 보정방법 Download PDFInfo
- Publication number
- KR100904672B1 KR100904672B1 KR1020080135150A KR20080135150A KR100904672B1 KR 100904672 B1 KR100904672 B1 KR 100904672B1 KR 1020080135150 A KR1020080135150 A KR 1020080135150A KR 20080135150 A KR20080135150 A KR 20080135150A KR 100904672 B1 KR100904672 B1 KR 100904672B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- transmission
- power
- output
- output signal
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 115
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Transceivers (AREA)
Abstract
Description
Claims (2)
- 태그에 공급될 전력과 RFID 리더의 데이터를 포함하는 RF 송신신호를 출력하는 송신부;상기 송신부에서 출력되는 RF 송신신호의 전력을 증폭하는 전력증폭부;상기 전력증폭부를 통해 출력되는 RF 송신출력신호를 안테나로 전달하고, 상기 안테나를 통해 입력된 RF 수신신호를 수신부로 전달하는 커플러;상기 커플러를 통해 상기 안테나로 전달되는 RF 송신출력신호 중 상기 수신부로 누설되는 송신누설신호의 신호강도(Received Signal Strength Indication; RSSI)를 측정하는 신호강도측정부; 및상기 측정된 RSSI 값을 기설정된 상기 송신누설신호의 전력크기에 대한 기준값과 비교하여 상기 RF 송신출력신호의 전력변화를 감지하고, 상기 송신부에서 출력되는 RF 송신신호의 전력크기가 일정하게 유지되도록 조절하는 전력제어부를 포함하는, RFID 리더의 송수신기.
- 태그에 공급될 전력과 RFID 리더의 데이터를 포함하는 RF 송신신호를 출력하는 신호출력단계;상기 RF 송신신호의 전력을 증폭하는 신호증폭단계;상기 신호증폭단계를 통해 출력되는 RF 송신출력신호를 안테나로 전달하고, 상기 안테나를 통해 입력된 RF 수신신호를 수신부로 전달하는 신호전달단계;상기 안테나로 전달되는 RF 송신출력신호 중 상기 수신부로 누설되는 송신누설신호의 신호강도(Received Signal Strength Indication; RSSI)를 측정하는 신호강도측정단계; 및상기 측정된 RSSI 값을 기설정된 상기 송신누설신호의 전력크기에 대한 기준값과 비교하여 상기 신호증폭단계를 통해 출력되는 RF 송신출력신호의 전력변화를 감지하고, 상기 신호출력단계를 통해 출력되는 RF 송신신호의 전력크기가 일정하게 유지되도록 조절하는 신호전력제어단계를 포함하는, RFID 리더의 송신출력신호 보정방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080135150A KR100904672B1 (ko) | 2008-12-29 | 2008-12-29 | Rfid 리더의 송수신기 및 송신출력신호 보정방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080135150A KR100904672B1 (ko) | 2008-12-29 | 2008-12-29 | Rfid 리더의 송수신기 및 송신출력신호 보정방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100904672B1 true KR100904672B1 (ko) | 2009-06-25 |
Family
ID=40983172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080135150A KR100904672B1 (ko) | 2008-12-29 | 2008-12-29 | Rfid 리더의 송수신기 및 송신출력신호 보정방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100904672B1 (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011031095A2 (en) * | 2009-09-10 | 2011-03-17 | Lg Innotek Co., Ltd. | Apparatus and method for reader-based energy pumping and thin film battery integral type semi-passive tag |
KR101086563B1 (ko) * | 2009-09-10 | 2011-11-23 | 엘지이노텍 주식회사 | 에너지 펌핑장치 및 방법 |
WO2016164134A1 (en) * | 2015-04-10 | 2016-10-13 | Qualcomm Incorporated | Systems and methods for transmit power control |
CN109815754A (zh) * | 2019-01-11 | 2019-05-28 | 南京南瑞微电子技术有限公司 | 一种读写器rfid发射功率自适应控制方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010018467A (ko) * | 1999-08-19 | 2001-03-05 | 서평원 | 이동통신 안테나 출력제어장치 및 방법 |
-
2008
- 2008-12-29 KR KR1020080135150A patent/KR100904672B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010018467A (ko) * | 1999-08-19 | 2001-03-05 | 서평원 | 이동통신 안테나 출력제어장치 및 방법 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011031095A2 (en) * | 2009-09-10 | 2011-03-17 | Lg Innotek Co., Ltd. | Apparatus and method for reader-based energy pumping and thin film battery integral type semi-passive tag |
WO2011031095A3 (en) * | 2009-09-10 | 2011-08-04 | Lg Innotek Co., Ltd. | Apparatus and method for reader-based energy pumping and thin film battery integral type semi-passive tag |
KR101086563B1 (ko) * | 2009-09-10 | 2011-11-23 | 엘지이노텍 주식회사 | 에너지 펌핑장치 및 방법 |
WO2016164134A1 (en) * | 2015-04-10 | 2016-10-13 | Qualcomm Incorporated | Systems and methods for transmit power control |
US9756578B2 (en) | 2015-04-10 | 2017-09-05 | Qualcomm Incorporated | Systems and methods for transmit power control |
CN109815754A (zh) * | 2019-01-11 | 2019-05-28 | 南京南瑞微电子技术有限公司 | 一种读写器rfid发射功率自适应控制方法 |
CN109815754B (zh) * | 2019-01-11 | 2022-02-01 | 南京杰思微电子技术有限公司 | 一种读写器rfid发射功率自适应控制方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107342779B (zh) | 用于天线信号连接中的衰减补偿的电路组件和方法 | |
CN105939166B (zh) | 用于调谐天线配置的近场通信调制反馈装置 | |
US20090243801A1 (en) | Method and System for Utilizing an RFID Sensor Tag as RF Power Measurement Embedded in Antenna | |
KR100996104B1 (ko) | 휴대형 rfid의 수신감도 향상 장치 및 방법 | |
EP3139667B1 (en) | Hybrid rf polling loop for nfc device and retry mechanism | |
KR100904672B1 (ko) | Rfid 리더의 송수신기 및 송신출력신호 보정방법 | |
KR102448560B1 (ko) | 유도성 커플링을 통해 통신하는 통신 디바이스를 동작시키는 방법 및 시스템 | |
AU2011269828B2 (en) | Hybrid architecture for radio frequency identification and packet radio communication | |
CN102832889B (zh) | 一种射频负载输出调整方法、设备和*** | |
US20100073143A1 (en) | Transponders and methods for operating a transponder | |
CN101218752A (zh) | Rfid读取装置和方法 | |
US8779896B2 (en) | RFID reader and method for controlling gain thereof | |
JP2006203466A (ja) | 情報通信装置および物品識別システム | |
CN104036305B (zh) | 一种对发射功率进行自检测和自调节的rfid读写器及方法 | |
US20120296594A1 (en) | Pressure detection arrangement and method | |
US11663435B2 (en) | Method of monitoring and controlling a level of power transmitted by an antenna of a contactless communication device | |
CN101685492A (zh) | Rfid通信模型空中接口参数测试方法 | |
US20080106384A1 (en) | Apparatus and method of optimizing output power of rfid reader | |
KR101204090B1 (ko) | Rfid 태그 및 그의 출력 신호 발생 방법 | |
JP2008187227A (ja) | Rfidリーダ | |
CN106199259B (zh) | 一种自动测试电子标签最小启动功率的***及方法 | |
US20230318635A1 (en) | Radio communication device, radio communication method, and program | |
KR101757196B1 (ko) | 무선 주파수 판독기 | |
US20100302007A1 (en) | Methods and apparatus for rfid reader cable calibration | |
CN104036211A (zh) | 一种基于rfid移动身份认证范围监测***及方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
A302 | Request for accelerated examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130618 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20140618 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20150617 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20160617 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20180618 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20190618 Year of fee payment: 11 |