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1. 发明公开

EP0721616A1 METHOD AND APPARATUS FOR PROVIDING INFORMATION CONCERNING PRODUCTS, USING RADIO FREQUENCY TRANSMISSIONS 失效
标题翻译：方法和装置产品信息用射频信号的传输供应
公开(公告)号：EP0721616A1
公开(公告)日：1996-07-17
申请号：EP94929294.0
申请日：1994-09-22
申请人： SEATTLE SILICON CORPORATION , Krueger, Thomas E. , Astrof, Kenneth L.
发明人： KRUEGER, Thomas, E. , ASTROF, Kenneth, L.
IPC分类号： G06F1 , G06F13 , G06K7 , G06K17 , G06K19 , G06Q30 , H04B1 , H04B7
CPC分类号： G06K19/0704 , G06K7/0008 , G06K7/10039 , G06K17/0022 , G06K19/07703 , G06K2017/0067 , G06Q30/02 , G06Q30/06
摘要： A method and apparatus for providing information concerning products, using radio frequency transmissions. A host computer transfers information relating to a product to a radio frequency transmitter. The information is transmitted to a transceiver built into a label for the product, the label being located near a shelf of a gondola that is holding the product. The transmission from the transmitter to the transceiver may be made through one or more repeaters. A label transceiver for another product can act as a repeater, upon instruction from the host computer. When the intended label transceiver correctly receives the information concerning the product, it retransmits an acknowledgement back to the host computer along the same transmission path by which the information reached the transceiver. The transceiver stores the information relating to the product in the label. The transceiver and label are powered by a photovoltaic cell that transforms ambient light into electrical energy. If the ambient light decreases, in order to save electrical energy, the transceiver is first turned off. If it is necessary to save further electrical energy, the label display is next turned off. If the ambient light then increases, the display and then the transceiver are turned back on.

2. 发明公开

EP0716791A1 CHANNEL, POWER AND PN-SEQUENCE ASSIGNMENT IN A MOBILE DSSS SYSTEM 失效
标题翻译： CHANNEL和功率PN序列分配IN A MOBILE扩频
公开(公告)号：EP0716791A1
公开(公告)日：1996-06-19
申请号：EP94924043.0
申请日：1994-07-27
申请人： SEATTLE SILICON CORPORATION , Krueger, Thomas E. , Astrof, Kenneth L.
发明人： KRUEGER, Thomas, E. , ASTROF, Kenneth, L.
IPC分类号： H04B1 , H04B7
CPC分类号： H04W52/04 , H04B1/707
摘要： A method and apparatus for providing spread spectrum communications. The apparatus starts with designated spread spectrum communications parameters, such as default transmitted power level, pseudo-noise (PN) sequence, PN sequence length, and frequency channel, having values which are chosen to ensure that spread spectrum communications can be carried out between a first station and a second station. The apparatus of the invention then changes the values of the spread spectrum communications parameters to the minimum values necessary to provide a given level of communications reliability. If the conditions facing the spread spectrum communication system change so that communications reliability falls below the given level, the apparatus resets the values of the spread spectrum communications parameters to the default levels and begins again to change their values to provide the given level of communications reliability. If the apparatus establishes that communications can reliably be carried out with narrowband communications techniques, the apparatus changes the parameters to provide narrowband communications at the minimum acceptable power level.

3. 发明申请

WO1995008795A1 METHOD AND APPARATUS FOR PROVIDING INFORMATION CONCERNING PRODUCTS, USING RADIO FREQUENCY TRANSMISSIONS 审中-公开
标题翻译：使用无线电频率传输提供产品信息的方法和装置
公开(公告)号：WO1995008795A1
公开(公告)日：1995-03-30
申请号：PCT/US1994010715
申请日：1994-09-22
申请人： SEATTLE SILICON CORPORATION , KRUEGER, Thomas, E. , ASTROF, Kenneth, L.
发明人： SEATTLE SILICON CORPORATION
IPC分类号： G06F03/147
CPC分类号： G06K19/0704 , G06K7/0008 , G06K7/10039 , G06K17/0022 , G06K19/07703 , G06K2017/0067 , G06Q30/02 , G06Q30/06
摘要： A method and apparatus for providing information concerning products, using radio frequency transmissions. A host computer transfers information relating to a product to a radio frequency transmitter. The information is transmitted to a transceiver built into a label for the product, the label being located near a shelf of a gondola that is holding the product. The transmission from the transmitter to the transceiver may be made through one or more repeaters. A label transceiver for another product can act as a repeater, upon instruction from the host computer. When the intended label transceiver correctly receives the information concerning the product, it retransmits an acknowledgement back to the host computer along the same transmission path by which the information reached the transceiver. The transceiver stores the information relating to the product in the label. The transceiver and label are powered by a photovoltaic cell that transforms ambient light into electrical energy. If the ambient light decreases, in order to save electrical energy, the transceiver is first turned off. If it is necessary to save further electrical energy, the label display is next turned off. If the ambient light then increases, the display and then the transceiver are turned back on.
摘要翻译：一种用于使用射频传输提供关于产品的信息的方法和装置。主机将有关产品的信息传送到射频发射机。该信息被传送到内置在产品标签内的收发器，该标签位于保持该产品的缆车搁架附近。从发射机到收发机的传输可以通过一个或多个中继器进行。根据主机的指示，另一产品的标签收发器可以作为中继器。当预期的标签收发器正确地接收到关于产品的信息时，它将沿着与信息到达收发器的相同传输路径向主计算机发送确认。收发器将与产品有关的信息存储在标签中。收发器和标签由将环境光转换成电能的光伏电池供电。如果环境光降低，为了节省电能，首先关闭收发器。如果需要节省更多电能，则标签显示屏将被关闭。如果环境光然后增加，则显示器然后收发器被重新打开。

4. 发明申请

WO1995004408A1 CHANNEL, POWER AND PN-SEQUENCE ASSIGNMENT IN A MOBILE DSSS SYSTEM 审中-公开
标题翻译：在移动DSSS系统中的信道，功率和PN序列分配
公开(公告)号：WO1995004408A1
公开(公告)日：1995-02-09
申请号：PCT/US1994008507
申请日：1994-07-27
申请人： SEATTLE SILICON CORPORATION , KRUEGER, Thomas, E. , ASTROF, Kenneth, L.
发明人： SEATTLE SILICON CORPORATION
IPC分类号： H04B07/26
CPC分类号： H04W52/04 , H04B1/707
摘要： A method and apparatus for providing spread spectrum communications. The apparatus starts with designated spread spectrum communications parameters, such as default transmitted power level, pseudo-noise (PN) sequence, PN sequence length, and frequency channel, having values which are chosen to ensure that spread spectrum communications can be carried out between a first station and a second station. The apparatus of the invention then changes the values of the spread spectrum communications parameters to the minimum values necessary to provide a given level of communications reliability. If the conditions facing the spread spectrum communication system change so that communications reliability falls below the given level, the apparatus resets the values of the spread spectrum communications parameters to the default levels and begins again to change their values to provide the given level of communications reliability. If the apparatus establishes that communications can reliably be carried out with narrowband communications techniques, the apparatus changes the parameters to provide narrowband communications at the minimum acceptable power level.
摘要翻译：一种用于提供扩频通信的方法和装置。设备以指定的扩频通信参数（例如默认发射功率电平，伪噪声（PN）序列，PN序列长度和频率信道）开始），其具有被选择用于确保扩频通信可以在第一站和第二站。然后，本发明的装置将扩频通信参数的值改变为提供给定级别的通信可靠性所需的最小值。如果面向扩频通信系统的条件发生变化，使得通信可靠性降低到给定的电平以下，则设备将扩频通信参数的值重置为默认电平，并再次开始改变它们的值以提供给定的通信可靠性水平。如果装置确定可以通过窄带通信技术可靠地执行通信，则该装置改变参数以在最小可接受功率电平下提供窄带通信。

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