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1. WO2006046709 - RECEIVING DEVICE

Publication Number WO/2006/046709
Publication Date 04.05.2006
International Application No. PCT/JP2005/019918
International Filing Date 28.10.2005
IPC
H03M 3/02 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
3Conversion of analogue values to or from differential modulation
02Delta modulation, i.e. one-bit differential modulation
H04B 1/10 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference
H03H 17/02 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
17Networks using digital techniques
02Frequency-selective networks
H03H 17/04 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
17Networks using digital techniques
02Frequency-selective networks
04Recursive filters
H04B 1/16 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
16Circuits
H04B 1/26 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
16Circuits
26for superheterodyne receivers
CPC
H03H 17/0294
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
17Networks using digital techniques
02Frequency selective networks
0294Variable filters; Programmable filters
H03H 2017/0297
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
17Networks using digital techniques
02Frequency selective networks
0294Variable filters; Programmable filters
0297Coefficients derived from input parameters
H04H 40/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
40Arrangements specially adapted for receiving broadcast information
18Arrangements characterised by circuits or components specially adapted for receiving
Applicants
  • パイオニア株式会社 Pioneer Corporation [JP]/[JP] (AllExceptUS)
  • 山本 雄治 YAMAMOTO, Yuji [JP]/[JP] (UsOnly)
Inventors
  • 山本 雄治 YAMAMOTO, Yuji
Agents
  • 小橋 信淳 KOBASHI, Nobukiyo
Priority Data
2004-31549229.10.2004JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) RECEIVING DEVICE
(FR) DISPOSITIF RÉCEPTEUR
(JA) 受信装置
Abstract
(EN) A receiving device capable of performing analog-to-digital conversions of a plurality of analog reception signals of different frequencies into digital signals of a high quality by band-pass delta-sigma type AD converters. The band-pass delta-sigma type AD converters (4a, 4b) are provided in a number corresponding to that of analog reception signals (Xa, Xb) to be subjected to the analog-to-digital conversions. The individual band-pass filters to be built in the individual band-pass delta-sigma type AD converters (4a, 4b) are configured to have filter coefficients (&agr;, &bgr;) for causing the rejection bands suppressing quantization noises formed when quantized, to match the frequencies of the individual analog reception signals (Xa, Xb). As a result, the analog reception signals (Xa, Xb) of different frequencies are so subjected to the analog-to-digital conversions into individual digital signals (Ya, Yb) as to reduce the inclusion of the quantization noises.
(FR) Dispositif récepteur pouvant réaliser des conversions analogiques/numériques d’une pluralité de signaux analogiques de réception de différentes fréquences en signaux numériques d’une haute qualité par des convertisseurs A/N de type delta-sigma passe-bande. Les convertisseurs A/N de type delta-sigma passe-bande (4a, 4b) figurent en quantité correspondant à celle des signaux analogiques de réception (Xa, Xb) à soumettre aux conversions analogiques/numériques. Les filtres passe-bande individuels à intégrer dans les convertisseurs A/N de type delta-sigma passe-bande (4a, 4b) individuels sont configurés pour avoir un coefficient de filtrage (&agr;, &bgr;) faisant que les bandes de réjection suppriment les bruits de quantification ajoutés à la quantification, pour s’adapter aux fréquences des signaux analogiques de réception (Xa, Xb) individuels. En conséquence, les signaux analogiques de réception (Xa, Xb) de fréquences différentes sont ainsi soumis aux conversions analogiques/numériques en des signaux numériques individuels (Ya, Yb) de façon à réduire l’inclusion de bruits de quantification.
(JA) 本発明は、バンドパスデルタシグマ型AD変換器により周波数の異なる複数のアナログ受信信号を高品位のディジタル信号にアナログディジタル変換することが可能な受信装置を提供することを目的とする。 バンドパスデルタシグマ型AD変換器4a,4bをアナログディジタル変換すべきアナログ受信信号Xa,Xbの数に対応する個数設ける。各々のバンドパスデルタシグマ型AD変換器4a,4bに組み込まれる各バンドパスフィルタは、量子化に際して生じる量子化ノイズを抑制する阻止帯域を各々のアナログ受信信号Xa,Xbの周波数に合わせるフィルタ係数α,βを有するバンドパスフィルタで形成する。これにより、周波数の異なるアナログ受信信号Xa,Xbを、量子化ノイズの混入を低減して、各々のディジタル信号Ya,Ybにアナログディジタル変換する。
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