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公开(公告)号：DE60005488D1
公开(公告)日：2003-10-30
申请号：DE60005488
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMINSKI WALTER JOSEPH , KOLSTRUD ARILD
Abstract: A receiver (10) provides received analog signals to a plurality of channel branches (16a-x), and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of the relative positions of the corresponding analog signals in the radio frequency (RF) spectrum. The analog signals on the channel branches are then combined, and the combined analog signals are converted into the digital domain. For example, the receiver comprises at least one antenna(s) (12) which receives radio frequency (RF) analog signals. A channel branch arranger receives the analog RF signals from the antenna(s) and provides the RF analog signals to a plurality of channel branches (16a-x). A frequency conversion arrangement comprising at least one frequency converter (20) on at least a respective one of the channel branches adjusts the frequency band of the analog RF signals on the respective channel branch independent of the relative positions of the corresponding analog signals in the RF spectrum of the different channel branches. The analog signals on the channel branches are combined (in 22), and single analog to digital converter (24) converts the combined analog signals into digital signals. In converting the composite analog signals into the digital domain, the frequency bands of the analog signals are positioned in a plurality of Nyquist zone channels in the digital domain. By properly selecting the frequency bands for the analog signals on the channel branches and the sampling rate for the A/D converter, the available bandwidth for the A/D converter can be more efficiently used, and/or time coherence and/or phase coherence can be provided.
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公开(公告)号：CA2369227A1
公开(公告)日：2002-08-16
申请号：CA2369227
申请日：2002-01-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GARCERAN JULIO ANTONIO , KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
Abstract: A digital transmitter converts a digital signal into analog form with a digital to analog converter (DAC) and uses an analog signal image produced from the DAC to provide an analog signal at a transmission frequency and/or uses a projected analog signal image to produce analog signals for transmission. Rather than removin g analog signal images with a low pass filter at the output of the DAC and/or using analog signal images and analog mixers for frequency conversion, the digital transmitter uses the analog signal images from the DAC to produce the analog signals at the desired frequency/frequencies. By setting and/or adjusting the conversion rate for the DAC and/or the digital signal frequency/frequencies; the analog sign al images produced from the DAC can be positioned in the desired frequency band(s). Fo r example, the digital transmitter can position the digital signals within non - overlapping portions of a conversion bandwidth defined as one-half the conversion rate f or the DAC. When the digital signals are converted into analog form, the DAC produc es analog signal images periodically repeated at multiples of one-half the conversion rate such that analog signal images are produced at the appropriate frequency band(s) for amplification and transmission.
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公开(公告)号：BR0101298A
公开(公告)日：2001-11-13
申请号：BR0101298
申请日：2001-04-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KOLSRUD ARILD , KAMINSKI WALTER JOSEPH
Abstract: A receiver (10) provides received analog signals to a plurality of channel branches (16a-x), and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of the relative positions of the corresponding analog signals in the radio frequency (RF) spectrum. The analog signals on the channel branches are then combined, and the combined analog signals are converted into the digital domain. For example, the receiver comprises at least one antenna(s) (12) which receives radio frequency (RF) analog signals. A channel branch arranger receives the analog RF signals from the antenna(s) and provides the RF analog signals to a plurality of channel branches (16a-x). A frequency conversion arrangement comprising at least one frequency converter (20) on at least a respective one of the channel branches adjusts the frequency band of the analog RF signals on the respective channel branch independent of the relative positions of the corresponding analog signals in the RF spectrum of the different channel branches. The analog signals on the channel branches are combined (in 22), and single analog to digital converter (24) converts the combined analog signals into digital signals. In converting the composite analog signals into the digital domain, the frequency bands of the analog signals are positioned in a plurality of Nyquist zone channels in the digital domain. By properly selecting the frequency bands for the analog signals on the channel branches and the sampling rate for the A/D converter, the available bandwidth for the A/D converter can be more efficiently used, and/or time coherence and/or phase coherence can be provided.
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14.发明专利
公开(公告)号：BRPI0101297B1
公开(公告)日：2015-12-29
申请号：BR0101297
申请日：2001-04-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KOLSRUD ARILD , KAMINSKI WALTER JOSEPH
Abstract: "sistema receptor utilizando conversão de analógico para digital em radiofreqüência e método". um receptor recebe sinais analógicos em radiofreqüência (rf), e os sinais analógicos rf são convertidos em domínio digital. como tal, o receptor não requer estágio (s) de conversão de freqüência antes da conversão analógica para digital. por exemplo, o receptor pode compreender pelo menos uma antena (s) que recebe sinais analógicos de radiofreqüência (rf) em diferentes faixas de freqüência. os sinais analógicos rf são fornecidos a um conversor analógico para digital (a/d) único, e o conversor a/d converte os sinais analógicos rf em diferentes faixas de freqüência em sinais digitais dentro da largura de faixa nyquist. selecionando apropriadamente a taxa de amostragem do conversor a/d para os sinais analógicos rf, o conversor a/d pode produzir réplicas de diferentes faixas de freqüência dos sinais analógicos em porções de não-sobreposição da largura de faixa de nyquist.
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公开(公告)号：DE60207456D1
公开(公告)日：2005-12-29
申请号：DE60207456
申请日：2002-01-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GARCERAN JULIO ANTONIO , KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
Abstract: A digital transmitter converts a digital signal into analog form with a digital to analog converter (DAC) and uses an analog signal image produced from the DAC to provide an analog signal at a transmission frequency and/or uses a projected analog signal image to produce analog signals for transmission. Rather than removing analog signal images with a low pass filter at the output of the DAC and/or using analog signal images and analog mixers for frequency conversion, the digital transmitter uses the analog signal images from the DAC to produce the analog signals at the desired frequency/frequencies. By setting and/or adjusting the conversion rate for the DAC and/or the digital signal frequency/frequencies, the analog signal images produced from the DAC can be positioned in the desired frequency band(s). For example, the digital transmitter can position the digital signals within non-overlapping portions of a conversion bandwidth defined as one-half the conversion rate for the DAC. When the digital signals are converted into analog form, the DAC produces analog signal images periodically repeated at multiples of one-half the conversion rate such that analog signal images are produced at the appropriate frequency band(s) for amplification and transmission.
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Patent Agency Ranking
公开(公告)号：DE60000503D1
公开(公告)日：2002-10-31
申请号：DE60000503
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
Abstract: A receiver (10) receives analog signals at radio frequency (RF), and the RF analog signals are converted into the digital domain. As such, the receiver does not require frequency conversion stage(s) prior to analog to digital conversion. For example, the receiver can comprise at least one antenna(s) (12) which receives radio frequency (RF) analog signals at different frequency bands. The analog RF signals are provided to a single analog to digital (A/D) converter (24) and the A/D converter converts the analog RF signals at the different frequency bands into digital signals within the Nyquist bandwidth. By properly selecting the sampling rate of the A/D converter for the RF analog signals, the A/D converter can produce replicas of the different frequency bands of the analog signals in non-overlapping portions of the Nyquist bandwidth.
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公开(公告)号：CA2337714C
公开(公告)日：2005-09-13
申请号：CA2337714
申请日：2001-02-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
Abstract: A receiver receives analog signals at radio frequency (RF), and the RF anal og signals are converted into the digital domain. As such, the receiver does no t require frequency conversion stage(s) prior to analog to digital conversion. For example, the receiver can comprise at least one antenna(s) which receives radio frequency (RF) analog signals at different frequency bands. The analog RF signals are provided to a single analog to digital (A/D) converter, and the A/D converter converts the analog RF signals at the different frequency bands into digital signals within the Nyquist bandwidth. By properly selecting the sampling rate of the A/D converter for the RF analog signals, the A/D converter can produce replicas of the different frequency bands of the analog signals in non-overlapping portions of the Nyquist bandwidth.
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公开(公告)号：BR0101297A
公开(公告)日：2001-11-13
申请号：BR0101297
申请日：2001-04-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KOLSRUD ARILD , KAMINSKI WALTER JOSEPH
Abstract: A receiver (10) receives analog signals at radio frequency (RF), and the RF analog signals are converted into the digital domain. As such, the receiver does not require frequency conversion stage(s) prior to analog to digital conversion. For example, the receiver can comprise at least one antenna(s) (12) which receives radio frequency (RF) analog signals at different frequency bands. The analog RF signals are provided to a single analog to digital (A/D) converter (24) and the A/D converter converts the analog RF signals at the different frequency bands into digital signals within the Nyquist bandwidth. By properly selecting the sampling rate of the A/D converter for the RF analog signals, the A/D converter can produce replicas of the different frequency bands of the analog signals in non-overlapping portions of the Nyquist bandwidth.
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公开(公告)号：AU3508201A
公开(公告)日：2001-10-18
申请号：AU3508201
申请日：2001-04-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
IPC: H03M1/12 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/40 , H04B7/08 , H04B7/26 , H04L27/00 , H04Q7/30
Abstract: A receiver (10) receives analog signals at radio frequency (RF), and the RF analog signals are converted into the digital domain. As such, the receiver does not require frequency conversion stage(s) prior to analog to digital conversion. For example, the receiver can comprise at least one antenna(s) (12) which receives radio frequency (RF) analog signals at different frequency bands. The analog RF signals are provided to a single analog to digital (A/D) converter (24) and the A/D converter converts the analog RF signals at the different frequency bands into digital signals within the Nyquist bandwidth. By properly selecting the sampling rate of the A/D converter for the RF analog signals, the A/D converter can produce replicas of the different frequency bands of the analog signals in non-overlapping portions of the Nyquist bandwidth.
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公开(公告)号：AU3339901A
公开(公告)日：2001-10-18
申请号：AU3339901
申请日：2001-04-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMINSKI WALTER JOSEPH , KOLSRUD ARILD
Abstract: A receiver (10) provides received analog signals to a plurality of channel branches (16a-x), and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of the relative positions of the corresponding analog signals in the radio frequency (RF) spectrum. The analog signals on the channel branches are then combined, and the combined analog signals are converted into the digital domain. For example, the receiver comprises at least one antenna(s) (12) which receives radio frequency (RF) analog signals. A channel branch arranger receives the analog RF signals from the antenna(s) and provides the RF analog signals to a plurality of channel branches (16a-x). A frequency conversion arrangement comprising at least one frequency converter (20) on at least a respective one of the channel branches adjusts the frequency band of the analog RF signals on the respective channel branch independent of the relative positions of the corresponding analog signals in the RF spectrum of the different channel branches. The analog signals on the channel branches are combined (in 22), and single analog to digital converter (24) converts the combined analog signals into digital signals. In converting the composite analog signals into the digital domain, the frequency bands of the analog signals are positioned in a plurality of Nyquist zone channels in the digital domain. By properly selecting the frequency bands for the analog signals on the channel branches and the sampling rate for the A/D converter, the available bandwidth for the A/D converter can be more efficiently used, and/or time coherence and/or phase coherence can be provided.
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