KR0143567B1 - 무선전화기의 룸 모니터 회로 - Google Patents
무선전화기의 룸 모니터 회로Info
- Publication number
- KR0143567B1 KR0143567B1 KR1019900020252A KR900020252A KR0143567B1 KR 0143567 B1 KR0143567 B1 KR 0143567B1 KR 1019900020252 A KR1019900020252 A KR 1019900020252A KR 900020252 A KR900020252 A KR 900020252A KR 0143567 B1 KR0143567 B1 KR 0143567B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- unit
- room monitor
- microphone
- monitor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
Description
Claims (1)
- 통상의 완충부(10)와, 고주파 증폭부(20), 복조부(30), 음성증폭부(40), 송신 고주파 증폭부(50), 변조부(60), 음성 증폭부(70), 마이크, 안테나, 스피커, 하이브리드(HB)로 연결하여서 된 공지의 것에 있어서, 상기 복조부(30)와, 변조부(60) 및 마이크 사이에 미리 약정된 코드인가를 판별하는 신호 검출수단(80)과, 변조부에서 변조된 음성신호를 발생하는 신호발생수단(90)과, 룸 모니터 설정 코드로 판정되면 마이크를 동작시켜 주위의 신호를 검출하는 중앙처리장치(100)와, 마이크를 통한 주위신호를 증폭하는 신호 증폭수단(120)과, 신호 증폭부에서 증폭된 신호가 미리 설정된 기준 레벨보다 신호가 크면 신호로 판단하고, 기준 레벨보다 작으면 잡음으로 판단하는 신호 비교수단(110)으로 이루어진 고정장치와, 휴대장치에 키보드부(130)를 구성한 것을 특징으로 하는 무선전화기의 룸 모니터 회로.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900020252A KR0143567B1 (ko) | 1990-12-10 | 1990-12-10 | 무선전화기의 룸 모니터 회로 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900020252A KR0143567B1 (ko) | 1990-12-10 | 1990-12-10 | 무선전화기의 룸 모니터 회로 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920014329A KR920014329A (ko) | 1992-07-30 |
| KR0143567B1 true KR0143567B1 (ko) | 1998-08-17 |
Family
ID=19307285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019900020252A Expired - Fee Related KR0143567B1 (ko) | 1990-12-10 | 1990-12-10 | 무선전화기의 룸 모니터 회로 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0143567B1 (ko) |
-
1990
- 1990-12-10 KR KR1019900020252A patent/KR0143567B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR920014329A (ko) | 1992-07-30 |
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