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公开(公告)号：JP2001251102A
公开(公告)日：2001-09-14
申请号：JP2001026681
申请日：2001-02-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： RITTENHOUSE GEORGE E , ZIERDT MICHAEL GEORGE
Abstract: PROBLEM TO BE SOLVED: To provide a TFR filter circuit in which more excellent evenness of of the pass band can be accomplished while expanding the bandwidth. SOLUTION: Between an input and an output of the circuit, the filter has a plurality of thin film resonator elements(TFR) constituting a plurality of serial branches and shunt branches, the plurality of TFR elements have a set of resonance frequencies and electrode capacitance, a set of electrode capacitance of at least one TFR element among the serial branches ad the shunt branches is different from the electrode capacitance of the TFR elements of the other corresponding serial branches and shunt branches, and a set of resonance frequencies of at least one TFR element among the serial branches and shunt branches is different from the electrode capacitance of the TFR elements of the other corresponding serial branches and shunt branches.
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公开(公告)号：JP2001313535A
公开(公告)日：2001-11-09
申请号：JP2001032114
申请日：2001-02-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BOWER JOHN ERIC , PASTALAN JOHN Z , RITTENHOUSE GEORGE E
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for a piezoelectric film used for a resonator device. SOLUTION: In the method of this invention, a texture of a piezoelectric film 120 is directly affected by the surface condition of an electrode layer 135 thereunder and the surface condition of the electrode layer 135 is affected by the surface condition of an oxide layer or plug stack 125 under the electrode layer 135. Thus, the method of this invention is for manufacturing a device including the piezoelectric film and is characterized in that the method includes a step where the surface roughness and the deposition of the electrode are controlled.
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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：AU2006347213A1
公开(公告)日：2008-03-27
申请号：AU2006347213
申请日：2006-07-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： RITTENHOUSE GEORGE E , GOLDMAN STUART OWEN , RUNYON JAMES PHILIP , RAUSCHER KARL F , MALONE BERNARD LOUIS , KROCK RICHARD E , O'BRIEN FRANCIS EDWARD
IPC: H04W4/16
Abstract: A precautionary measure against cell-phone triggered bombs is described that restricts call terminations within a designated security risk area without shutting down the entire network. Embodiments described herein provide for restricting call terminations directed to a designated security risk area that are originated from non-privileged users, i.e., the general public, yet authorizing call terminations directed to the security risk area that are originated from privileged government users (e.g., GETS/WPS users). Call originations are permitted within the security risk area from both privileged and non-privileged users.
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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：DE60143682D1
公开(公告)日：2011-02-03
申请号：DE60143682
申请日：2001-01-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BOWER JOHN ERIC , PASTALAN JOHN Z , RITTENHOUSE GEORGE E
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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：DE60129108T2
公开(公告)日：2008-02-28
申请号：DE60129108
申请日：2001-05-04
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BRIAND JACQUES , CHAPON THIERRY HERVE , FALAKI HAMID REZA , LE GOFF YVON , PINKARD DAVID PETER , RITTENHOUSE GEORGE E
Abstract: Wireless telecommunications apparatus comprises a base station and a user terminal. The base station sends data to the user terminal on a first channel (DL1) at a first frequency (f1) in selected time slots and the user terminal sends data to the base station on a second channel (UL2) at a second frequency (f2) in selected time slots. These two frequencies are different. The network also either includes a transmitter which transmits further data to the user equipment on a shared channel (DL0) at a third frequency (f0) in time slots in which the other data is not being sent or includes a receiver which receives further data from the user equipment on a shared channel at the third frequency in time slots in which the other data is not being sent. The apparatus can be a UMTS or other third generation system.
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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：BRPI0613560A2
公开(公告)日：2011-01-18
申请号：BRPI0613560
申请日：2006-07-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GOLDMAN STUART OWEN , KROCK RICHARD E , MALONE BERNARD LOUIS III , O'BRIEN FRANCIS EDWARD , RAUSCHER KARL F , RITTENHOUSE GEORGE E , RUNYON JAMES PHILIP
IPC: H04W4/16
Abstract: A precautionary measure against cell-phone triggered bombs is described that restricts call terminations within a designated security risk area without shutting down the entire network. Embodiments described herein provide for restricting call terminations directed to a designated security risk area that are originated from non-privileged users, i.e., the general public, yet authorizing call terminations directed to the security risk area that are originated from privileged government users (e.g., GETS/WPS users). Call originations are permitted within the security risk area from both privileged and non-privileged users.
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