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US Patent 6223018 - Intra-body information transfer device
US Patent Issued on April 24, 2001
Estimated Patent Expiration Date:
December 12, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
December 12, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn information transfer device which transfers a signal via a human body, comprising: a transmitter having a signal source for outputting a time varying signal, a modulator for modulating a signal from the signal source using a carrier frequency of from several tens of KHz to several MHz, a transmission B electrode connected to an output from the modulator and arranged in the vicinity of a human body surface, and a transmission G electrode connected to a portion giving a reference voltage of the transmitter and arranged toward an external side with respect to the human body, and a receiver having a reception B electrode arranged in the vicinity of the human body surface in the vicinity of the transmitter, a reception G electrode connected to a portion giving a reference voltage of the receiver and arranged toward an external side with respect to the human body so as to be coupled with the transmission G electrode via air, an amplifier for amplifying a voltage between the reception B electrode and the reception G electrode, and a demodulator connected to an output from the amplifier for demodulating a signal output from the signal source of the transmitter.Other References
| InventorsAssigneeApplicationNo. 989656 filed on 12/12/1997US Classes:455/41.1, Near field (i.e., inductive or capacitive coupling)379/55.1HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE)Field of Search455/100, Body attached or connected455/39, TRANSMITTER AND RECEIVER AT SEPARATE STATIONS379/38, Personal monitoring (e.g., for the ill or infirm)379/37, EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT)379/55.1HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE)ExaminersPrimary: Hunter, Daniel S.Assistant: Corsaro, Nick Attorney, Agent or FirmUS Patent References3958560, Non-invasive automatic glucose sensor systemIssued on: 05/25/1976 Inventor: March4334315, Wireless transmitting and receiving systems including ear microphones Issued on: 06/08/1982 Inventor: Ono , et al.4763340, Capacitive coupling type data transmission circuit for portable electronic apparatus Issued on: 08/09/1988 Inventor: Yoneda , et al.4918737, Hearing aid with wireless remote control Issued on: 04/17/1990 Inventor: Luethi4980626, Method and apparatus for positioning a robotic end effector Issued on: 12/25/1990 Inventor: Hess, et al.4988981, Computer data entry and manipulation apparatus and method Issued on: 01/29/1991 Inventor: Zimmerman, et al.5864755, Method for allowing a mobile phone to receive a call through a wireless network for which it is not registered, for emergency purposes Issued on: 01/26/1999 Inventor: King, et al.5914701Non-contact system for sensing and signalling by externally induced intra-body currents Issued on: 06/22/1999 Inventor: Gersheneld, et al. Foreign Patent References
International ClassH04B 005/00Foreign Application Priority Data1996-12-12 JP |
