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1.发明专利
公开(公告)号：JP2002118463A
公开(公告)日：2002-04-19
申请号：JP2001251207
申请日：2001-08-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KOLSRUD ARILD , WU HUI
Abstract: PROBLEM TO BE SOLVED: To provide a method and system for performing analog/digital conversion capable of reducing the influence of clock jitter or the like, and performing high speed sampling. SOLUTION: This analog/digital(A/D) conversion system converts an analog input signal into a digital output value by connecting a plurality of digital sample values. This A/D system is provided with an averaging circuit for averaging N pieces of digital sample values from the A/D converter. This mean value is generated as a digital output value for digital processing circuit. Thus, a signal verse noise rate(SNR) of the A/D system can be increased.
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公开(公告)号：JP2000115010A
公开(公告)日：2000-04-21
申请号：JP28503499
申请日：1999-10-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MA ZHENGXIANG , RITTENHOUSE GEORGE E , WU HUI
Abstract: PROBLEM TO BE SOLVED: To obtain a homodyne radio receiver using a low intermediate frequency for an orthogonal signal by demodulating an applied signal by means of a specified frequency and recovering an IF signal corresponding to a base band signal which is demodulated by means of the specified frequency. SOLUTION: The outputs of demodulators 70 and 75 are respectively supplied to elements 80 and 85. In them, input signals are multiplied by Wi and results are integrated over one signal period. That is, the demodulators 70 and 75 are used for demodulating an added (transmitted) signal corresponding to the base band signal of a band width ωA which is modulated by the signal having the frequency ωc. By the demodulators 70 and 75, the added (transmitted) signal is demodulated by the frequency ωLO (ωc+ωA>ωLO>ωc-ωA and also ωLO≠ωc) so that the IF signal corresponding to the base band signal which is demodulated by the frequency ωIF=ωc-ωLO is obtained.
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公开(公告)号：DE60000346T2
公开(公告)日：2003-03-27
申请号：DE60000346
申请日：2000-09-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BARNETT RON , KORISCH ILYA ALEXANDER , WU HUI
Abstract: A high-frequency, e.g., microwave, antenna (100) is stamped from a single sheet of electromagnetically conductive material, e.g., a metal plate. A manufacture comprising a frame (104), a plurality of radiator antenna elements (108), a plurality of first supports (112) each connecting a radiator antenna element to the frame, a feed network (110) connected to the radiator antenna elements, and a plurality of second supports connecting the radiators and the feed network to each other and to the frame, are stamped out of the single sheet. A combiner (114) may be included in the manufacture as well. The second supports provide alignment and rigidity during manufacture and assembly. Preferably, a plurality of the manufactures are stamped out side-by-side from a single roll for ease of automated manufacture and assembly. The frame is either made in two pieces or is bent relative to the resonator antenna elements along fold lines, to provide an offset of the radiators from a ground plane (102). The frame is mounted on the ground plane, and the second supports are then removed. Preferably, the feed network is positioned (e.g., by being bent) to lie closer to the ground plane than the radiator antenna elements.
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公开(公告)号：DE60000260D1
公开(公告)日：2002-08-14
申请号：DE60000260
申请日：2000-09-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BARNETT RON , BUONDELMONTE CHARLES JOSEPH , KORISCH ALEXANDER , MANZIONE LOUIS THOMAS , SCHWARTZ RICHARD F , WOJCIK THADDEUS , WU HUI
Abstract: A new physical design for electronic devices (100) comprises a multi-layer stacked assembly (104-110) of a plurality of pan-shaped conductive units that form the layers of the assembly. Each unit is preferably formed from a single sheet of metal into which electronic components, such as an antenna array or a filter array of a transceiver, have been stamped, cut, or etched, and which is then bent around its periphery to form a pan shape. The pans are oriented to face the same direction, are stacked one on top of another, and are fixedly attached to each other by weld, solder, or adhesive. The electrical components defined by the different units are electrically interconnected in a connectorless manner, preferably by flanges (122, 124) formed in the same sheets of metal as the units themselves and extending between the units. Adjacent units in the stack define electromagnetically isolated chambers, e.g., for the filter array. Some layers perform double duty, e.g., a layer (106) that forms a part of the chamber that houses the filter array also acts as a reflector plane for the antenna array.
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公开(公告)号：AU755367B2
公开(公告)日：2002-12-12
申请号：AU5017099
申请日：1999-09-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MA ZHENGXIANG , RITTENHOUSE GEORGE E , WU HUI
Abstract: A single-ended homodyne receiver demodulates quadrature signals containing spectral nulls by using an extremely low intermediate-frequency that normally would create substantial self-interference. This is accomplished by judiciously placing the spectral nulls over the critical sections of the signal spectrum, ensuring that the self-interference is minimized. As an example, a direct-sequence CDMA signal that was constructed with not more than one half the available Walsh functions is demodulated directly by placing the intermediate frequency such that spectral nulls in the CDMA signal overlap the spectral peaks in the desired signal, thereby eliminating the self-interference. This single-ended homodyne receiver can be implemented using either integrated or discrete components.
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Patent Agency Ranking
公开(公告)号：DE60000260T2
公开(公告)日：2003-03-13
申请号：DE60000260
申请日：2000-09-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BARNETT RON , BUONDELMONTE CHARLES JOSEPH , KORISCH ALEXANDER , MANZIONE LOUIS THOMAS , SCHWARTZ RICHARD F , WOJCIK THADDEUS , WU HUI
Abstract: A new physical design for electronic devices (100) comprises a multi-layer stacked assembly (104-110) of a plurality of pan-shaped conductive units that form the layers of the assembly. Each unit is preferably formed from a single sheet of metal into which electronic components, such as an antenna array or a filter array of a transceiver, have been stamped, cut, or etched, and which is then bent around its periphery to form a pan shape. The pans are oriented to face the same direction, are stacked one on top of another, and are fixedly attached to each other by weld, solder, or adhesive. The electrical components defined by the different units are electrically interconnected in a connectorless manner, preferably by flanges (122, 124) formed in the same sheets of metal as the units themselves and extending between the units. Adjacent units in the stack define electromagnetically isolated chambers, e.g., for the filter array. Some layers perform double duty, e.g., a layer (106) that forms a part of the chamber that houses the filter array also acts as a reflector plane for the antenna array.
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公开(公告)号：AU5017099A
公开(公告)日：2000-04-13
申请号：AU5017099
申请日：1999-09-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MA ZHENGXIANG , RITTENHOUSE GEORGE E , WU HUI
Abstract: A single-ended homodyne receiver demodulates quadrature signals containing spectral nulls by using an extremely low intermediate-frequency that normally would create substantial self-interference. This is accomplished by judiciously placing the spectral nulls over the critical sections of the signal spectrum, ensuring that the self-interference is minimized. As an example, a direct-sequence CDMA signal that was constructed with not more than one half the available Walsh functions is demodulated directly by placing the intermediate frequency such that spectral nulls in the CDMA signal overlap the spectral peaks in the desired signal, thereby eliminating the self-interference. This single-ended homodyne receiver can be implemented using either integrated or discrete components.
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公开(公告)号：DE60000312D1
公开(公告)日：2002-09-12
申请号：DE60000312
申请日：2000-10-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BARNETT RON , KORISCH IIYA ALEXANDER , MA ZHENGXIANG , SCHWARTZ RICHARD F , WU HUI
Abstract: A transceiver (100) comprises a stacked metal laminate assembly of a plurality of layers (104-112) inside an enclosure (102). A first layer (104) forms an antenna. A second layer (106) forms a ground plane for the antenna. A third layer (108) forms "front-end" filters (duplexer). A fourth layer (110) together with the second layer forms an electromagnetic isolation enclosure for the filters. A fifth layer (112) comprises a PC board with electronic circuits of the transceiver mounted thereon, and is both mounted to and electronically shielded by the fourth layer. Each of the first through fourth layers is preferably made from a single metal layer, such as a sheet of metal, by stamping. Each of the first through fourth layers is either bent along its periphery into a substantially "cake-pan" shape, or is flat and has a separate side wall (130) attached thereto. Flanges (122 and 124) that are unitarily formed with the filters extend through orifices (126 and 128) in the second and fourth layers to connect the filters with the antenna and the electronic circuits. The connections may be conductive or capacitive. The assembly is put together by stacking the first through fourth layers and then epoxying, soldering, or welding them together.
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公开(公告)号：BR9904346A
公开(公告)日：2000-06-13
申请号：BR9904346
申请日：1999-09-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MA ZHENGXIANG , RITTENHOUSE GEORGE E , WU HUI
Abstract: A single-ended homodyne receiver demodulates quadrature signals containing spectral nulls by using an extremely low intermediate-frequency that normally would create substantial self-interference. This is accomplished by judiciously placing the spectral nulls over the critical sections of the signal spectrum, ensuring that the self-interference is minimized. As an example, a direct-sequence CDMA signal that was constructed with not more than one half the available Walsh functions is demodulated directly by placing the intermediate frequency such that spectral nulls in the CDMA signal overlap the spectral peaks in the desired signal, thereby eliminating the self-interference. This single-ended homodyne receiver can be implemented using either integrated or discrete components.
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公开(公告)号：DE60000312T2
公开(公告)日：2003-04-03
申请号：DE60000312
申请日：2000-10-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BARNETT RON , KORISCH IIYA ALEXANDER , MA ZHENGXIANG , SCHWARTZ RICHARD F , WU HUI
Abstract: A transceiver (100) comprises a stacked metal laminate assembly of a plurality of layers (104-112) inside an enclosure (102). A first layer (104) forms an antenna. A second layer (106) forms a ground plane for the antenna. A third layer (108) forms "front-end" filters (duplexer). A fourth layer (110) together with the second layer forms an electromagnetic isolation enclosure for the filters. A fifth layer (112) comprises a PC board with electronic circuits of the transceiver mounted thereon, and is both mounted to and electronically shielded by the fourth layer. Each of the first through fourth layers is preferably made from a single metal layer, such as a sheet of metal, by stamping. Each of the first through fourth layers is either bent along its periphery into a substantially "cake-pan" shape, or is flat and has a separate side wall (130) attached thereto. Flanges (122 and 124) that are unitarily formed with the filters extend through orifices (126 and 128) in the second and fourth layers to connect the filters with the antenna and the electronic circuits. The connections may be conductive or capacitive. The assembly is put together by stacking the first through fourth layers and then epoxying, soldering, or welding them together.
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