GB1563509A - Intermediate frequency converters - Google Patents
Intermediate frequency converters Download PDFInfo
- Publication number
- GB1563509A GB1563509A GB35936/76A GB3593676A GB1563509A GB 1563509 A GB1563509 A GB 1563509A GB 35936/76 A GB35936/76 A GB 35936/76A GB 3593676 A GB3593676 A GB 3593676A GB 1563509 A GB1563509 A GB 1563509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- converter
- intermediate frequency
- oscillator
- mhz
- output
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Radio Relay Systems (AREA)
- Transceivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2547092A DE2547092C3 (de) | 1975-10-21 | 1975-10-21 | Zwischenfrequenzumsetzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1563509A true GB1563509A (en) | 1980-03-26 |
Family
ID=5959678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35936/76A Expired GB1563509A (en) | 1975-10-21 | 1976-08-31 | Intermediate frequency converters |
Country Status (15)
| Country | Link |
|---|---|
| JP (2) | JPS5250609A (xx) |
| AR (1) | AR209203A1 (xx) |
| AT (1) | AT355628B (xx) |
| BE (1) | BE847505A (xx) |
| BR (1) | BR7607019A (xx) |
| CH (1) | CH607447A5 (xx) |
| DE (1) | DE2547092C3 (xx) |
| DK (1) | DK474276A (xx) |
| FR (1) | FR2329102A1 (xx) |
| GB (1) | GB1563509A (xx) |
| IE (1) | IE44164B1 (xx) |
| IT (1) | IT1073095B (xx) |
| LU (1) | LU75611A1 (xx) |
| NL (1) | NL7611585A (xx) |
| SE (1) | SE413728B (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT396194B (de) * | 1988-07-27 | 1993-06-25 | Uher Ag | Verfahren und vorrichtung zum empfangen und filtern eines tonfrequenten eingangssignals mit mindestens einer steuerfrequenz |
| JP2595783B2 (ja) * | 1990-07-31 | 1997-04-02 | 日本電気株式会社 | 送信器 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1270129B (de) * | 1963-07-16 | 1968-06-12 | Rohde & Schwarz | Kombinierter Senderí¬Empfaenger |
| AT254945B (de) * | 1963-12-30 | 1967-06-12 | Siemens Ag | Gestell für Geräte der elektrischen Nachrichtentechnik |
| DE2263137B2 (de) * | 1972-12-22 | 1975-05-15 | Hans Kolbe & Co, 3202 Bad Salzdetfurth | Einrichtung zur Umsetzung sehr hoher Frequenzen |
-
1975
- 1975-10-21 DE DE2547092A patent/DE2547092C3/de not_active Expired
-
1976
- 1976-08-16 CH CH1039476A patent/CH607447A5/xx not_active IP Right Cessation
- 1976-08-17 LU LU75611A patent/LU75611A1/xx unknown
- 1976-08-31 GB GB35936/76A patent/GB1563509A/en not_active Expired
- 1976-09-06 IE IE1975/76A patent/IE44164B1/en unknown
- 1976-09-22 AT AT702276A patent/AT355628B/de not_active IP Right Cessation
- 1976-09-30 AR AR264934A patent/AR209203A1/es active
- 1976-10-07 SE SE7611138A patent/SE413728B/sv unknown
- 1976-10-08 FR FR7630319A patent/FR2329102A1/fr active Granted
- 1976-10-19 IT IT28473/76A patent/IT1073095B/it active
- 1976-10-20 NL NL7611585A patent/NL7611585A/xx not_active Application Discontinuation
- 1976-10-20 BR BR7607019A patent/BR7607019A/pt unknown
- 1976-10-20 DK DK474276A patent/DK474276A/da unknown
- 1976-10-21 BE BE171687A patent/BE847505A/xx unknown
- 1976-10-21 JP JP51126757A patent/JPS5250609A/ja active Pending
-
1981
- 1981-05-06 JP JP1981064463U patent/JPS56172045U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2329102B1 (xx) | 1980-08-08 |
| JPS5250609A (en) | 1977-04-22 |
| JPS56172045U (xx) | 1981-12-18 |
| SE413728B (sv) | 1980-06-16 |
| BE847505A (fr) | 1977-02-14 |
| BR7607019A (pt) | 1977-09-06 |
| DE2547092C3 (de) | 1983-05-05 |
| AR209203A1 (es) | 1977-03-31 |
| DE2547092B2 (de) | 1979-10-31 |
| IE44164L (en) | 1977-04-21 |
| FR2329102A1 (fr) | 1977-05-20 |
| DK474276A (da) | 1977-04-22 |
| ATA702276A (de) | 1979-08-15 |
| LU75611A1 (xx) | 1977-03-29 |
| SE7611138L (sv) | 1977-04-22 |
| IE44164B1 (en) | 1981-08-26 |
| AT355628B (de) | 1980-03-10 |
| IT1073095B (it) | 1985-04-13 |
| DE2547092A1 (de) | 1977-04-28 |
| NL7611585A (nl) | 1977-04-25 |
| CH607447A5 (xx) | 1978-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4115737A (en) | Multi-band tuner | |
| CN100388633C (zh) | 在二次转频接收器中前馈镜像抑制的设备及方法 | |
| EP0185416A2 (en) | Radio receiver/transmitter filters | |
| JPS5823978B2 (ja) | チユ−ナ | |
| DE2755867A1 (de) | Frequenzkonverter | |
| US5613234A (en) | Receive filter using frequency translation for or in cellular telephony base station | |
| CN101147328A (zh) | 对无线电通信系统中信道滤波的改善 | |
| GB1563509A (en) | Intermediate frequency converters | |
| US3771064A (en) | Bidirectional signal processing means | |
| FR2509500B1 (xx) | ||
| JP2003273757A (ja) | Ｃａｔｖチューナ | |
| CN100496098C (zh) | 一种电视系统的调谐器及其调谐方法 | |
| US6941106B1 (en) | Structure for reducing intermodulation interference in satellite signal transmission | |
| CN100446411C (zh) | 低噪声降频器 | |
| KR100270321B1 (ko) | 주파수 변환 장치 및 그 방법 | |
| JP3049083B2 (ja) | ダブルヘテロダイン信号選択回路装置 | |
| CN219834142U (zh) | 一种射频防信号串扰宽带收发系统 | |
| CN102244532A (zh) | 一种移动通信带宽可调选带直放站装置 | |
| WO2023150868A1 (en) | Wideband electronically tunable filter and method | |
| WO2021059733A1 (ja) | 無線伝送装置 | |
| EP0421708A2 (en) | Frequency converting device | |
| US20050054310A1 (en) | Heterodyne system | |
| WO2002035716A2 (en) | Method and apparatus for eliminating in-band ripple from band-pass filter responses | |
| KR950008533Y1 (ko) | 더블컨버젼 튜너의 크로스 모듈레이션 및 인터모듈레이션 개선회로 | |
| KR200218578Y1 (ko) | 텔레비젼튜너의 불요파제거회로 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |