JPH0336242U - - Google Patents
Info
- Publication number
- JPH0336242U JPH0336242U JP1989095852U JP9585289U JPH0336242U JP H0336242 U JPH0336242 U JP H0336242U JP 1989095852 U JP1989095852 U JP 1989095852U JP 9585289 U JP9585289 U JP 9585289U JP H0336242 U JPH0336242 U JP H0336242U
- Authority
- JP
- Japan
- Prior art keywords
- fmx
- circuit
- signal
- detection
- broadcasting
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
- H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
- H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
- H04H20/48—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration
Description
第1図は本考案の一実施例を示す構成図、第2
図は従来装置の一例を示す構成図である。 12……復調器、14……バンドパスフイルタ
、16……ID検知回路、18……モード/デマ
トリツクス回路、20……FMXインジケータ、
22……PLL回路、24……強制FMスイツチ
。
図は従来装置の一例を示す構成図である。 12……復調器、14……バンドパスフイルタ
、16……ID検知回路、18……モード/デマ
トリツクス回路、20……FMXインジケータ、
22……PLL回路、24……強制FMスイツチ
。
Claims (1)
- 【実用新案登録請求の範囲】 FM放送とFMX放送とを識別するID信号を
、FMXコンポジツト信号中の相当周波数成分を
フイルタ手段によつて取り出すことによつて検知
するFMX・ID検知回路において、 前記フイルタ手段から出力された相当周波数成
分からID信号を検知するPLL回路と、このP
LL回路によるID検出に基づいてFM/FMX
のモード切り換えを行なうスイツチング回路とを
備えたことを特徴とするFMX・ID検知回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989095852U JPH0336242U (ja) | 1989-08-16 | 1989-08-16 | |
US07/567,866 US5103480A (en) | 1989-08-16 | 1990-08-15 | FMX identification signal detection apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989095852U JPH0336242U (ja) | 1989-08-16 | 1989-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0336242U true JPH0336242U (ja) | 1991-04-09 |
Family
ID=14148902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989095852U Pending JPH0336242U (ja) | 1989-08-16 | 1989-08-16 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5103480A (ja) |
JP (1) | JPH0336242U (ja) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420658A (en) * | 1981-05-04 | 1983-12-13 | Hazeltine Corporation | Multiple tone signal system |
US4485483A (en) * | 1983-03-18 | 1984-11-27 | Torick Emil L | FM Stereophonic system incorporating companding of difference signal |
KR960008328B1 (ko) * | 1987-02-20 | 1996-06-24 | 상요덴기 가부시기가이샤 | 스테레오 방송수신기 |
US4916741A (en) * | 1987-03-27 | 1990-04-10 | Sanyo Electric Co., Ltd. | FM/FMX stereophonic receiver |
US4914680A (en) * | 1987-06-03 | 1990-04-03 | Sanyo Electric Co., Ltd. | Signal distinction circuit |
KR960009448B1 (en) * | 1988-11-16 | 1996-07-19 | Sanyo Electric Co | Signal distinction circuit |
-
1989
- 1989-08-16 JP JP1989095852U patent/JPH0336242U/ja active Pending
-
1990
- 1990-08-15 US US07/567,866 patent/US5103480A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5103480A (en) | 1992-04-07 |