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1. 发明授权

EP1421405B1 Device and method of determining whether two electronic devices engaged in an electronic financial transaction are within close proximity of each other 有权
标题翻译：和装置以及处理电子TO建立短距离的距离机器之间进行FINAN目的交易
公开(公告)号：EP1421405B1
公开(公告)日：2012-06-13
申请号：EP02768307.7
申请日：2002-07-12
申请人： Ericsson Inc.
发明人： DENT, Paul, W.
IPC分类号： G01S11/16 , G07G1/14
CPC分类号： G06Q20/327 , G01S11/16
摘要： A first, transmitting, device transmits a digitized data message using a short range radio link followed by digital data representing a digitized acoustic signal, such as a tone. Simultaneously, or with a predetermined time delay, the transmitting device emits an acoustic version of the same signal using an acoustic transducer such as a loudspeaker. A second, receiving, device receives the data message and the digitized acoustic signal via the short range radio link and receives the acoustic version of the signal via a microphone, which converts the acoustic signal to a second digitized version of the acoustic signal. Digital signal processing circuits then correlate the second digitized signal received acoustically with the digitized acoustic signal received over the short range radio link to determine a time difference of arrival. The time difference is corrected for any predetermined delay between the radio and the acoustic signal emissions at the transmitter and predetermined processing delays in the receiver. Once the time delay is determined, the receiving device can determine its distance 'from the transmitting device using the difference between the speed of sound and the speed of radio propagation .

2. 发明授权

EP0781481B1 BLIND EQUALIZING APPARATUS 失效
标题翻译：安排盲均衡
公开(公告)号：EP0781481B1
公开(公告)日：2009-01-07
申请号：EP95933114.1
申请日：1995-09-12
申请人： Ericsson Inc.
发明人： DENT, Paul, W.
IPC分类号： H04L25/03
CPC分类号： H04L25/03203
摘要： A demodulator for demodulating a signal modulated with digital information symbols so as to extract the information symbols is disclosed. A receiver receives a signal over a communications channel and samplers and digitizers produce a sequence of numerical sample values representative of the received signal. Memories are provided each having a number of state memories each associated with a hypothesized symbol string. A controller selectively retrieves values from the memory means and controls the timing of operations thereupon. A metric computer computes candidate metrics using a hypothesis of a next of the information symbols to be demodulated made by the controller, one of the numerical sample values, path metric values, B-matrices, and U-vectors and the candidate metrics associated state number selected by the controller from the memory means. A best predecessor computer determines the best of the candidate metrics to be selected to be written back into the memory means along with a successor B-matrix, U-vector and path history. The successor B-matrices, U-vectors and path history are then updated using corresponding values associated with the best predecessor and one of numerical sample values.

3. 发明授权

EP1451926B1 POWER AMPLIFIER CONTROL 有权
标题翻译：功率放大器控制
公开(公告)号：EP1451926B1
公开(公告)日：2007-11-21
申请号：EP02737201.0
申请日：2002-05-29
申请人： Ericsson Inc.
发明人： DENT, Paul, W. , PEHLKE, David, R. , HADJICHRISTOS, Aristotle
IPC分类号： H03F3/20
CPC分类号： H03F1/0222 , H03F2200/331 , H03F2200/462 , H03F2200/471 , H03F2200/504
摘要： Methods and systems for amplitude-modulating a power amplifier based on sensed current and sensed voltage provided to the power amplifier are provided. The sensed current and sensed voltage may be summed to provided both current and voltage feedback to modulate the power supplied to the power amplifier. Alternatively, both the current feedback and the voltage feedback may be selectively utilized to modulate the power supplied to the power amplifier.

4. 发明授权

EP0728383B1 SATELLITE COMMUNICATIONS ADAPTER FOR CELLULAR HANDSET 失效
标题翻译：卫星通信适配器用于蜂窝电话听筒
公开(公告)号：EP0728383B1
公开(公告)日：2007-08-22
申请号：EP95934986.1
申请日：1995-09-14
申请人： Ericsson Inc.
发明人： DENT, Paul, W.
IPC分类号： H04B1/38 , H04Q7/32
CPC分类号： H04W88/06 , H04B1/3877 , H04B7/18563 , H04B7/18571 , H04W84/105 , H04W88/02
摘要： A dual-mode telephone with a satellite communication adapter is disclosed. According to one embodiment of the present invention, a cellular-type handportable phone is equipped with a connector for the attachment of accessories. This connector provides a satellite communications adapter accessory access to the handset's signal processing resources which may operate in an alternative mode to process signals received from a satellite and converted by the adapter into a suitable form for processing. The processing translates the satellite signals into voice or data, and vice-versa.

5. 发明授权

EP1142244B1 METHOD AND SYSTEM FOR THE TRANSMISSION, RECEPTION AND PROCESSING OF 4-LEVEL AND 8-LEVEL SIGNALING SYMBOLS 有权
标题翻译：方法和系统，以便传输到接收和处理4和8级信令图标
公开(公告)号：EP1142244B1
公开(公告)日：2005-06-01
申请号：EP99961823.4
申请日：1999-11-24
申请人： Ericsson Inc.
发明人： DENT, Paul, W. , RAMESH, Rajaram
IPC分类号： H04L27/00 , H04L27/18
CPC分类号： H04L27/186 , H04L27/0008
摘要： A method and system for the transmission, reception, and processing of 4-level and 8-level signaling symbols is provided. An inventive modulator is provided for modulating 4-level signaling symbols using an 8-level modulator. Further, this inventive modulator is able to produce 4-level modulation when modulating 4-level signaling symbols using an 8-level modulator, where the 4-level modulation represents the 4-level symbol sequence modulated. Further, a constrained/unconstrained demodulator is provided which is able to demodulate both 4-level signaling symbols and 8-level signaling symbols. The inventive demodulator accomplishes this by limiting the number of new symbol hypotheses and path histories to 4 when working with 4-level signaling symbols, and setting the number of new symbol hypotheses and path histories to 8 when working with 8-level signaling symbols. Additionally, an error correction decoder is provided which is also able to decode a demodulated signal which contains both 4-level and 8-level signaling symbols. The inventive error correction decoder accomplishes this by utilizing an interleaver that only places bits in the 2-bit positions of the 3-PSK soft values that correspond to the 2-bits of QPSK to decode 4-level signalling symbols, and utilizing an interleaver that places bits in all three of the possible bit positions of a symbol to decode 8-level signalling symbols.

6. 发明授权

EP1145513B1 REDUCED-STATE SEQUENCE ESTIMATION WITH SET PARTITIONING 有权
标题翻译：通过组分发应用程序状态影响减小估计
公开(公告)号：EP1145513B1
公开(公告)日：2005-05-04
申请号：EP99967590.3
申请日：1999-12-27
申请人： Ericsson Inc.
发明人： DENT, Paul, W.
IPC分类号： H04L25/03 , H03M13/41
CPC分类号： H03M13/6325 , H03M13/41 , H03M13/6502 , H03M13/6508 , H04L25/03337
摘要： The current invention describes how symbols may be allowed to straddle the region containing hypothesized symbols and the path history region, so that symbols exist partially in both states. This allows those parts of the symbol that are most important for predicting signal samples to be retained in the hypothesized state while the remaining parts can pass to the path history. A decoder that decodes a signal modulated with information symbols belonging to an alphabet of symbols. The decoder comprises a maximum likelihood sequence estimator that hypothesizes alphabetic sub-groups containing the information symbols, to hypothesize symbols within the alphabet and to determine a sequence of the information symbols having a highest likelihood indication. The decoder also includes a channel estimator to estimate coefficients describing a channel through which the signal has propagated, a signal predictor that combines the channel estimates with corresponding samples of the signal to obtain a metric and a metric accumulator to accumulate the metrics for hypothesized symbol sequences to determine the likelihood indications.

7. 发明授权

EP0782803B1 METHOD FOR DEMODULATING DIGITALLY MODULATED DATA SIGNALS 失效
标题翻译：数字调制数据的解调的方法
公开(公告)号：EP0782803B1
公开(公告)日：2005-02-23
申请号：EP95935175.0
申请日：1995-09-01
申请人： Ericsson Inc.
发明人： DENT, Paul, W.
IPC分类号： H04L25/03 , H03G3/20
CPC分类号： H03G3/3078 , H04L25/03248 , H04L25/03273

8. 发明公开

EP1472866A2 TELEVISION RECEIVER AND METHOD FOR PROCESSING SIGNAL SAMPLE STREAMS SYNCHRONOUSLY WITH LINE/FRAME PATTERNS 审中-公开
标题翻译：电视接收机及方法了同步处理SIGNALABTASTWERTSTRÖMEN直线和图像模式
公开(公告)号：EP1472866A2
公开(公告)日：2004-11-03
申请号：EP03705680.1
申请日：2003-01-08
申请人： Ericsson, Inc.
发明人： DENT, Paul, W.
IPC分类号： H04N7/01
CPC分类号： H04N5/455 , H04N5/21 , H04N5/211 , H04N5/44 , H04N5/4401 , H04N5/46 , H04N21/42638
摘要： Television receivers receive a television signal and downconvert the television signal to generate a complex baseband signal. The complex baseband signal is differentiated and then integrated to reduce a direct current (DC) offset in the complex baseband signal. The television receiver may include a periodic known information field. The known information field is correlated with the integrated signal to determine a residual offset therein that is associated with a constant used in integrating the differentiated complex baseband signal. The residual offset is subtracted from this constant when integrating the differentiated complex baseband signal.

9. 发明授权

EP0927480B1 INTERFERENCE MITIGATION BY JOINT DETECTION OF COCHANNEL SIGNALS 失效
标题翻译：干扰减少BY KOKANALSIGNALEN的同时采集
公开(公告)号：EP0927480B1
公开(公告)日：2004-06-23
申请号：EP97940936.4
申请日：1997-09-12
申请人： Ericsson Inc.
发明人： DENT, Paul, W. , BOTTOMLEY, Gregory, E.
IPC分类号： H04L25/03
CPC分类号： H04L1/0069 , H01Q1/246 , H01Q21/08 , H01Q21/28 , H03M13/27 , H03M13/35 , H03M13/41 , H04B7/0837 , H04B7/0851 , H04B7/10 , H04B7/18515 , H04B7/18532 , H04B7/18567 , H04L1/0048 , H04L1/0054 , H04L1/007 , H04L1/0071 , H04L25/03203 , H04L25/03331 , H04W84/025
摘要： A digital information bit that has been encoded and transmitted as a first modulated signal from a first transmitter in the presence of a second modulated signal that has been transmitted by a second transmitter is received and decoded by receiving a composite signal that is a sum of the first modulated signal and the second modulated signal. The composite signal is processed to generate a complex numerical sample. Then, a plurality of bit pairs are hypothesized, wherein each hypothesized bit pair includes a hypothesized first information bit encoded and transmitted by the first transmitter and a hypothesized second information bit encoded and transmitted by the second transmitter. For each of the plurality of hypothesized bit pairs, a path metric is generated that is indicative of a likelihood that information sequence estimates are accurate estimates, wherein the information sequence estimates include the hypothesized first and second information bits. For each of the plurality of hypothesized bit pairs, the generated path metric is added to a previously determined cumulative path metric to generate a most recent cumulative path metric. An information sequence estimate is selected that has a lowest most recent cumulative path metric, wherein the selected information sequence estimate includes an information sequence estimated to have been encoded and transmitted by the first transmitter and an information sequence estimated to have been encoded and transmitted by the second transmitter.

10. 发明授权

EP0801876B1 POSITION REGISTRATION FOR MOBILE PHONES 失效
标题翻译：位置登记的移动电话
公开(公告)号：EP0801876B1
公开(公告)日：2003-11-19
申请号：EP95944741.8
申请日：1995-12-29
申请人： ERICSSON INC.
发明人： DENT, Paul, W.
IPC分类号： H04Q7/38 , H04B7/185 , G01B11/06
CPC分类号： H04W68/00 , H04B7/1855 , H04W60/04 , H04W68/02 , H04W68/04 , H04W68/08 , H04W76/10 , H04W84/042 , H04W84/06 , H04W88/06
摘要： A method for determining the position of a mobile radio telephone in a satellite communication system is disclosed. First, a mobile radio telephone scans a plurality of paging channels and measures the signal strength of the paging channels. The mobile radio telephone then selects the paging channels with the strongest signal strength and decodes the information broadcasted on the selected channel. The information contained in the paging channel can include frequencies or timeslots of paging channels in surrounding spot beams. The mobile station then measures the signal strength of paging channels in surrounding spot beams and quantizes the measurements to determine a coarse position of the mobile radio telephone.

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