JP2000511028A - 周波数変換回路 - Google Patents
周波数変換回路Info
- Publication number
- JP2000511028A JP2000511028A JP10529272A JP52927298A JP2000511028A JP 2000511028 A JP2000511028 A JP 2000511028A JP 10529272 A JP10529272 A JP 10529272A JP 52927298 A JP52927298 A JP 52927298A JP 2000511028 A JP2000511028 A JP 2000511028A
- Authority
- JP
- Japan
- Prior art keywords
- frequency conversion
- conversion circuit
- stage
- oscillator
- input
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 3
- 238000010295 mobile communication Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000001629 suppression Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241000644027 Perideridia lemmonii Species 0.000 description 1
Classifications
-
- 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
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
-
- 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
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発振 器入力に接続された発振器出力とを有する周波数変換回路において、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とする周波数変換回路。 2. 上記多段周波数変換手段は二段の周波数変換手段であることを特徴とする 請求項1記載の周波数変換回路。 3. 上記多段周波数変換手段の中の少なくとも一段は、直角位相パス側多段周 波数変換手段であることを特徴とする請求項1又は2記載の周波数変換回路。 4. 上記直角位相パス側多段周波数変換手段は、同相パス側発振器入力を介し て上記発振器出力に接続された同相パスと、直角位相パス側発振器入力を有する 直角位相パスとを有し、 上記多段周波数変換手段は、上記同相パス側発振器入力と上記直角位相側発振 器入力との間に接続された少なくとも一個の90°位相シフタを有することを特 徴とする、請求項3記載の周波数変換回路。 5. 上記分周手段は位相ロックドループに含まれていることを特徴とする請求 項1乃至4のうちいずれか1項記載の周波数変換回路。 6. 上記位相ロックドループは、制御入力及び上記分周手段に接続された発振 器出力を有する局部電圧制御発振器の形をなす発振器 と、 基準周波数入力、上記分周手段に接続された入力及び上記電圧制御発振器の上 記制御入力に接続された出力を有する位相弁別器とを更に有することを特徴とす る請求項5記載の周波数変換回路。 7. 上記分周手段はカウンタ手段を含むことを特徴とする請求項1乃至6のう ちいずれか1項記載の周波数変換回路。 8. 上記カウンタ手段はカウンタの直列配置及び/又は並列配置を含むことを 特徴とする請求項7記載の周波数変換回路。 9. 上記カウンタ手段は少なくとも2進カウンタを含む請求項7又は8記載の 周波数変換回路。 10. 上記カウンタ手段は、二つの2進カウンタを含む請求項9記載の周波数 変換回路。 11. 上記分周手段は、nが整数を表すとき、n分周手段が実現されるように 上記二つの2進カウンタと接続されたゲート手段を含むことを特徴とする請求項 10記載の周波数変換回路。 12. nは2又は3であることを特徴とする請求項11記載の周波数変換回路 。 13. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備した電気通信 システムにおいて、 上記周波数変換回路は、上記多段周波数変換手段の発振器出力と少なくとも一 つの別の発振器入力との間に接続された分周手段を更 に有することを特徴とする電気通信システム。 14. 無線伝送システム、コードレス若しくはセルラ電話システム等の伝送シ ステム、オーディオ若しくはビデオシステム、制御システム、遠隔測定システム 、ローカルエリアネットワーク、又は、広域ネットワーク等であることを特徴と する請求項13記載の電気通信システム。 15. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備した受信器に おいて、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とする請求項1乃至12のうち いずれか1項記載の周波数変換回路を具備した受信器。 16. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備した送信器に おいて、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とする請求項1乃至12のうち いずれか1項記載の周波数変換回路を具備した送信器。 17. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備したトランシ ーバにおいて、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とす る請求項1乃至12のうちいずれか1項記載の周波数変換回路を具備したトラン シーバ。 18. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備した集積回路 において、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とする請求項1乃至12のうち いずれか1項記載の周波数変換回路を具備した集積回路。 19. 多段周波数変換手段と、上記多段周波数変換手段の少なくとも一つの発 振器入力に接続された発振器出力とを有する周波数変換回路を具備した電話機に おいて、 上記多段周波数変換手段の発振器出力と少なくとも一つの別の発振器入力との 間に接続された分周手段を更に有することを特徴とする請求項1乃至12のうち いずれかl項記載の周波数変換回路を具備した電話機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97200739.7 | 1997-03-12 | ||
EP97200739 | 1997-03-12 | ||
PCT/IB1998/000238 WO1998040968A2 (en) | 1997-03-12 | 1998-02-27 | A frequency conversion circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000511028A true JP2000511028A (ja) | 2000-08-22 |
JP4236059B2 JP4236059B2 (ja) | 2009-03-11 |
Family
ID=8228096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52927298A Expired - Lifetime JP4236059B2 (ja) | 1997-03-12 | 1998-02-27 | 周波数変換回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6282413B1 (ja) |
JP (1) | JP4236059B2 (ja) |
DE (1) | DE69834875T2 (ja) |
Cited By (1)
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JP2009194613A (ja) * | 2008-02-14 | 2009-08-27 | Panasonic Corp | シンセサイザと、これを用いた受信装置及び電子機器 |
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1998
- 1998-02-27 JP JP52927298A patent/JP4236059B2/ja not_active Expired - Lifetime
- 1998-02-27 DE DE69834875T patent/DE69834875T2/de not_active Expired - Lifetime
- 1998-03-05 US US09/035,433 patent/US6282413B1/en not_active Expired - Lifetime
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2009194613A (ja) * | 2008-02-14 | 2009-08-27 | Panasonic Corp | シンセサイザと、これを用いた受信装置及び電子機器 |
Also Published As
Publication number | Publication date |
---|---|
DE69834875T2 (de) | 2007-01-11 |
DE69834875D1 (de) | 2006-07-27 |
US6282413B1 (en) | 2001-08-28 |
JP4236059B2 (ja) | 2009-03-11 |
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