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    • 46. 发明专利
    • CONVERTIDOR DIGITAL - ANALOGICO, FILTRO DE SENALES, COMBINADOS Y METODOS
    • AR046488A1
    • 2005-12-14
    • ARP040101397
    • 2004-04-23
    • QUALCOMM INC
    • BURKE JOSEPH PATRICK
    • H03M1/06H03M1/66H03M3/00H04B1/69H04L27/04
    • Un circuito electrónico para procesar una senal digital pueden incluir una pluralidad de circuitos de retardo digital, estando cada uno de ellos configurado para producir una réplica retardada de la senal digital; una pluralidad de convertidores digital-analógico, estando cada uno de ellos configurado para convertir la senal digital o la réplica retardada desde uno de los circuitos de retardo, en una senal analógica; una pluralidad de circuitos de ganancia analógica, estando cada uno de ellos configurado para ajustar la senal analógica desde uno de los convertidores digital-analógico mediante un factor de ganancia, y teniendo cada uno de ellos una salida; y un sumador analógico configurado para sumar las salidas de los circuitos de ganancia analógica. La cantidad de circuitos de retardo y la magnitud de los retardos y ganancias pueden ser seleccionadas para hacer que el circuito funcione como un filtro de paso de banda, un filtro de paso alto, un filtro de paso bajo, un filtro de muesca, o cualquier otro tipo de filtro. El circuito puede ser utilizado en una amplia variedad de aplicaciones que incluyen un transceptor (tal como una estación abonada) y en aplicaciones de banda ultra ancha.
    • 47. 发明公开
    • COMBINED DIGITAL-TO-ANALOG CONVERTER AND SIGNAL FILTER
    • KOMBINATIONS-DIGITAL / ANALOG-UMSETZER UND SIGNALFILTER
    • EP1623504A4
    • 2006-08-23
    • EP04760349
    • 2004-04-23
    • QUALCOMM INC
    • BURKE JOSEPH PATRICK
    • H04B1/69H03M1/06H03M1/66H03M3/00
    • H03M1/0626H03M1/66H03M3/504H04B1/71635
    • An electronic circuit for processing a digital signal may include a plurality of digital delay circuits, each configured to produce a delayed replica of the digital signal; a plurality of digital-to-analog converters, each configured to convert the digital signal or the delayed replica from one of the delay circuits into an analog signal; a plurality of analog gain circuits, each configured to adjust the analog signal from one of the digital-to-analog converters by a gain factor and each having an output; and an analog summer configured to sum the outputs of the analog gain circuits. The number of delay circuits and the magnitude of the delays and gains may be selected to cause the circuit to function as a band pass filter, a high pass filter, a low-pass filter, a notch filter, or any other type of filter. The circuit may be used in a broad variety of applications, including a transceiver (such as a subscriber station) and in ultra wideband applications.
    • 用于处理数字信号的电子电路可以包括多个数字延迟电路,每个数字延迟电路被配置为产生数字信号的延迟复制品; 多个数模转换器,每个转换器被配置为将数字信号或延迟复制品从延迟电路之一转换为模拟信号; 多个模拟增益电路,每个模拟增益电路被配置为通过增益因子调整来自所述数模转换器之一的模拟信号,并且每个具有输出; 以及模拟加法器,其被配置为对模拟增益电路的输出求和。 可以选择延迟电路的数量和延迟和增益的大小以使电路用作带通滤波器,高通滤波器,低通滤波器,陷波滤波器或任何其它类型的滤波器。 该电路可以用于广泛的应用中,包括收发器(例如用户站)和超宽带应用。
    • 50. 发明申请
    • COMBINED DIGITAL-TO-ANALOG CONVERTER AND SIGNAL FILTER
    • 组合数字到模拟转换器和信号滤波器
    • WO2004098062A3
    • 2005-08-11
    • PCT/US2004012577
    • 2004-04-23
    • QUALCOMM INCBURKE JOSEPH PATRICK
    • BURKE JOSEPH PATRICK
    • H03M1/06H03M1/66H03M3/00H04B1/69H04L27/04
    • H03M1/0626H03M1/66H03M3/504H04B1/71635
    • An electronic circuit for processing a digital signal may include a plurality of digital delay circuits, each configured to produce a delayed replica of the digital signal; a plurality of digital-to-analog converters, each configured to convert the digital signal or the delayed replica from one of the delay circuits into an analog signal; a plurality of analog gain circuits, each configured to adjust the analog signal from one of the digital-to-analog converters by a gain factor and each having an output; and an analog summer configured to sum the outputs of the analog gain circuits. The number of delay circuits and the magnitude of the delays and gains may be selected to cause the circuit to function as a band pass filter, a high pass filter, a low-pass filter, a notch filter, or any other type of filter. The circuit may be used in a broad variety of applications, including a transceiver (such as a subscriber station) and in ultra wideband applications.
    • 用于处理数字信号的电子电路可以包括多个数字延迟电路,每个数字延迟电路被配置为产生数字信号的延迟复制品; 多个数模转换器,每个转换器被配置为将数字信号或延迟的副本从其中一个延迟电路转换为模拟信号; 多个模拟增益电路,每个模拟增益电路被配置为通过增益因子调整来自所述数模转换器之一的模拟信号,并且每个具有输出; 以及模拟加法器,其被配置为对模拟增益电路的输出求和。 可以选择延迟电路的数量和延迟和增益的大小,以使电路用作带通滤波器,高通滤波器,低通滤波器,陷波滤波器或任何其它类型的滤波器。 该电路可以用于广泛的应用中,包括收发器(例如用户台)和超宽带应用。