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1. 发明申请

US20050285807A1 RF communication device and method of using it and antenna construction for use in the device and method 失效
标题翻译： RF通信设备及其使用方法和天线结构用于设备和方法
公开(公告)号：US20050285807A1
公开(公告)日：2005-12-29
申请号：US11159996
申请日：2005-06-23
申请人： Ilan Zehngut , Ovadia Grossman , Haim Slotin
发明人： Ilan Zehngut , Ovadia Grossman , Haim Slotin
IPC分类号： G08C17/02 , H01Q1/04 , H01Q1/22 , H01Q25/00
CPC分类号： H01Q1/2233 , H01Q1/04 , H01Q1/22
摘要： A device comprising a RF transmitter, a casing for the RF transmitter and, connected to and extending from the RF transmitter, an antenna for radiating RF signals produced by the RF transmitter, the antenna comprising an elongated member having a first portion and a second portion each of which comprises a first conductor, a second conductor and an insulator between the first conductor and the second conductor, and, between the first portion and the second portion, a third portion comprising a first conductor, wherein the first conductor of each of the first portion, the second portion and the third portion is a common conductor connected to the RF transmitter and wherein the second conductor of the first portion and the second conductor of the second portion are electrically isolated from one another.
摘要翻译：一种包括RF发射器的装置，用于所述RF发射器的壳体，并且连接到所述RF发射器并且从所述RF发射器延伸，用于辐射由所述RF发射器产生的RF信号的天线，所述天线包括细长构件，所述细长构件具有第一部分和第二部分其中每个包括第一导体，第二导体和在第一导体和第二导体之间的绝缘体，并且在第一部分和第二部分之间，包括第一导体的第三部分，其中，第一部分，第二部分和第三部分是连接到RF发射器的公共导体，并且其中第一部分的第二导体和第二部分的第二导体彼此电隔离。

2. 发明授权

US07202828B2 RF communication device and method of using it and antenna construction for use in the device and method 失效
标题翻译： RF通信设备及其使用方法和天线结构用于设备和方法
公开(公告)号：US07202828B2
公开(公告)日：2007-04-10
申请号：US11159996
申请日：2005-06-23
申请人： Ilan Zehngut , Ovadia Grossman , Haim Slotin
发明人： Ilan Zehngut , Ovadia Grossman , Haim Slotin
IPC分类号： H01Q1/04 , G08B23/00
CPC分类号： H01Q1/2233 , H01Q1/04 , H01Q1/22
摘要： A device comprising a RF transmitter, a casing for the RF transmitter and, connected to and extending from the RF transmitter, an antenna for radiating RF signals produced by the RF transmitter, the antenna comprising an elongated member having a first portion and a second portion each of which comprises a first conductor, a second conductor and an insulator between the first conductor and the second conductor, and, between the first portion and the second portion, a third portion comprising a first conductor, wherein the first conductor of each of the first portion, the second portion and the third portion is a common conductor connected to the RF transmitter and wherein the second conductor of the first portion and the second conductor of the second portion are electrically isolated from one another.
摘要翻译：一种包括RF发射器的装置，用于所述RF发射器的壳体，并且连接到所述RF发射器并且从所述RF发射器延伸，用于辐射由所述RF发射器产生的RF信号的天线，所述天线包括细长构件，所述细长构件具有第一部分和第二部分其中每个包括第一导体，第二导体和在第一导体和第二导体之间的绝缘体，并且在第一部分和第二部分之间，包括第一导体的第三部分，其中，第一部分，第二部分和第三部分是连接到RF发射器的公共导体，并且其中第一部分的第二导体和第二部分的第二导体彼此电隔离。

3. 发明授权

US5339333A FSK demodulator using signal transitions 失效
标题翻译： FSK解调器使用信号转换
公开(公告)号：US5339333A
公开(公告)日：1994-08-16
申请号：US010955
申请日：1993-01-29
申请人： Ilan Zehngut , Uzi Zakai
发明人： Ilan Zehngut , Uzi Zakai
IPC分类号： H04L27/156 , H03D3/00 , H04L27/14
CPC分类号： H04L27/1566
摘要： An FSK demodulator is provided comprising means for receiving and digitizing an FSK signal (such as a signal comprising two frequencies f1 and f2 in which first and second logic states are represented by first and second periods of different durations). First, second, third and fourth consecutive transitions of the signal are identified and the times of said transitions are identified. A first period between the first and third transitions is calculated, as is a second period between the second and fourth transitions. A change of frequency in the signal is indicated when the first and second periods lie on opposite sides of a first threshold period (.tau.) and no change of frequency is indicated when the first and second periods lie on the same side of the threshold period (.tau.). In a further aspect of the invention, a transition is rejected as illegal when two consecutive transitions occur within a predetermined period of time.
摘要翻译：提供FSK解调器，其包括用于接收和数字化FSK信号（诸如包括两个频率f1和f2的信号的装置，其中第一和第二逻辑状态由不同持续时间的第一和第二周期表示）。识别信号的第一，第二，第三和第四连续转换，并且识别所述转换的时间。计算第一和第三转换之间的第一周期，以及第二和第四转换之间的第二周期。当第一和第二周期位于第一阈值周期（τ）的相反侧时，指示信号中的频率变化，并且当第一和第二周期位于阈值周期的同一侧时，不指示频率变化（ tau）。在本发明的另一方面，当在预定时间段内发生两个连续的转变时，转移被拒绝为非法。

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