公开(公告)号：US5105190A

公开(公告)日：1992-04-14

申请号：US566830

申请日：1990-08-14

Applicant: Harm J. Kip ,  Tallienco W. H. Fockens

Inventor： Harm J. Kip ,  Tallienco W. H. Fockens

IPC: H04B5/00 ,  B61L25/04 ,  G06K19/00 ,  G06K19/07 ,  G07C9/00 ,  H04J9/00 ,  H04L27/02

CPC classification number: G06K7/10039 ,  B61L25/043 ,  G06K19/0723 ,  G07C9/00111

Abstract: An electromagnetic identfication system of the kind in which a transmitter generates an electromagnetic interrogation field in a detection zone. At least one passive responder is provided capable of disturbing the interrogation field. A detection circuit detects a disturbance of the interrogation field caused by a responder. The responder is a single receiver circuit which responds to the interrogation field which supplies energy to activate a digital encoding circuit having a binary-code defining circuit. The encoding circuit is arranged, in operation, through a switch to vary the electrical characteristics of the receiver circuit to generate a code signal that is detectable by the detection circuit. The encoding circuit is arranged to control the switch during the pre-determined periods of time for varying the electrical characteristics of the receiver circuit. A programmer is provided to modulate the transitter to generate a modulated interrogation field.

公开(公告)号：US4308530A

公开(公告)日：1981-12-29

申请号：US904416

申请日：1978-05-10

Applicant: Harm J. Kip ,  Tallienco W. H. Fockens

Inventor： Harm J. Kip ,  Tallienco W. H. Fockens

IPC: G08B13/24

CPC classification number: G08B13/2422 ,  G08B13/2417 ,  G08B13/2474

Abstract: A detection system comprises at least one gate including transmitter means for forming a magnetic field and receiver means for receiving a signal transmitted by a detecting wafer provided with an oscillating circuit, wherein each gate comprises at least two spatial detection zones.

Abstract translation: 检测系统包括至少一个门，其包括用于形成磁场的发射器装置和用于接收由设置有振荡电路的检测晶片发射的信号的接收器装置，其中每个栅极包括至少两个空间检测区域。

公开(公告)号：US5103222A

公开(公告)日：1992-04-07

申请号：US213371

申请日：1988-06-30

Applicant: Johannes H. L. Hogen Esch ,  Harm J. Kip

Inventor： Johannes H. L. Hogen Esch ,  Harm J. Kip

IPC: G01S13/75 ,  A01K11/00 ,  G01S13/76 ,  G01S13/79 ,  G06K19/07 ,  G07C9/00 ,  H04B1/59

CPC classification number: G07C9/00111 ,  A01K11/006 ,  G06K19/0723

Abstract: An electronic identification system comprises at least one transmitter capable of generating an interrogation field in an interrogation zone and a plurality of responders capable of generating a pre-determined coded signal in response to an interrogation field. The signal can be detected by at least one receiver. According to the invention, the at least one responder has a receiver circuit adapted to be brought into a first mode in which the receiver circuit forms a tuned narrow-banded circuit and into a second mode in which the receiver circuit forms a broad-banded circuit.

公开(公告)号：US5019813A

公开(公告)日：1991-05-28

申请号：US180745

申请日：1988-04-12

Applicant: Harm J. Kip ,  Willem H. J. Venema

Inventor： Harm J. Kip ,  Willem H. J. Venema

IPC: G01S13/74 ,  A01K11/00 ,  B61L25/04 ,  G01S13/75 ,  G01S13/76 ,  G01S13/79 ,  G06K7/00 ,  G07C9/00

CPC classification number: G07C9/00111 ,  A01K11/006 ,  B61L25/043 ,  B61L25/048 ,  G06K7/0008 ,  H01Q1/2225 ,  H01Q7/00

Abstract: A system for the contactless exchange of data between a transceiver and a passive data carrier is described. A prior data carrier comprises at least one digital memory and at least one digital control device for the memory. In it, the data carrier has a single-coil receiver circuit connected to a controllable switch device. In operation, the data carrier provides, in response to an electromagnetic a.c. field generated by a transceiver, via at least one rectifier, supply power for active components of the data carrier and clock signals for the control of digital components of the data carrier. According to the present invention, in order to provide for the possibility of bi-directional data exchange between a transceiver and a passsive data carrier, and in general, to provide a universally applicable data exchange system of the contactless kind, the transceiver is equipped with a modulator for amplitude modulating the a.c. field. The control device has two inputs for the supply of clock signals and data signals and includes level detectors cooperating with the inputs and arranged to allow the passage of an input signal voltage exceeding a pre-determined value as a valid input signal pulse. The coil is connected to the inputs through a two-branch voltage divider so that the voltage at the clock signal input is higher than that at the data signal input.

公开(公告)号：US4196418A

公开(公告)日：1980-04-01

申请号：US847148

申请日：1977-10-31

Applicant: Harm J. Kip ,  Tallienco W. H. Fockens

Inventor： Harm J. Kip ,  Tallienco W. H. Fockens

IPC: G06K9/00 ,  A01K1/10 ,  A01K11/00 ,  B61L25/04 ,  G01D5/00 ,  G01S13/75 ,  G05B19/12 ,  G06K19/07 ,  G07C20060101 ,  G07C9/00 ,  G07C11/00 ,  G08B15/00 ,  G08G1/017 ,  G09F20060101 ,  H03K5/153 ,  H04Q7/00 ,  G01S9/56

CPC classification number: G05B19/12 ,  A01K11/006 ,  B61L25/043 ,  G01S13/758 ,  G06K19/0723 ,  G07C9/00111 ,  G08G1/017

Abstract: A detection plate for an identification system, comprising a resonant circuit, a switching device, and coding means, characterized in that the coding means comprises a digital circuit and is arranged to receive, in operation, supply voltage from the resonant circuit via rectifier means.

Abstract translation: 一种用于识别系统的检测板，包括谐振电路，开关装置和编码装置，其特征在于编码装置包括数字电路，并被布置成在操作中接收来自谐振电路的经由整流装置的电压。