ACTIVE SIGNAL PROCESSING PERSONAL HEALTH SIGNAL RECEIVERS

• US 20100316158A1
• Filed: 11/19/2007
• Published: 12/16/2010
• Est. Priority Date: 11/20/2006
• Status: Active Grant

• Current Assignee: Otsuka Pharmaceutical Company Limited (Otsuka Holdings Company Limited)
• Original Assignee: Proteus Digital Health, Inc. (Otsuka Holdings Company Limited)
• Inventors: Arne, Lawrence
• Granted Patent: US 8,718,193 B2
• Time in Patent Office: Days
• US Class Current: 375/285
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• CPC Class Codes: A61B 5/0028 Body tissue as transmission medium, i.e. transmission systems where the medium is the human body
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/7257 using Fourier transforms
• CPC Class Codes: H04B 1/1027 assessing signal quality or detecting noise/interference for the received signal
• CPC Class Codes: H04B 1/123 using adaptive balancing or compensation means adaptive filter circuits and algorithms H03H
• CPC Class Codes: H04B 13/005 Transmission systems in which the medium consists of the human body
• CPC Class Codes: H04L 1/0036 arrangements specific to the receiver
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 27/152 using controlled oscillators, e.g. PLL arrangements
• CPC Class Codes: H04L 27/22 Demodulator circuits; Receiver circuits
• CPC Class Codes: H04L 27/2271 wherein the carrier recovery circuit uses only the demodulated signals
• CPC Class Codes: H04L 27/2273 associated with quadrature demodulation, e.g. Costas loop

Abstract

The invention provides a receiver associated with a body, e.g., located inside or within close proximity to a body, configured to receive and decode a signal from an in vivo transmitter which located inside the body. Signal receivers of the invention provide for accurate signal decoding of a low-level signal, even in the presence of significant noise, using a small-scale chip, e.g., where the chip consumes very low power. Also provided are systems that include the receivers, as well as methods of using the same.

Claims

13-1. The signal receiver according to claim 13, wherein said receiver further comprises an actively adjustable rate sampler for an incoming signal.

27. A method of transmitting data from an in vivo transmitter to a body associated receiver, said method comprising:

(a) transmitting a modulated encoded data signal from an in vivo transmitter to a body associated receiver;

(b) receiving said modulated encoded data signal at said body associated receiver, wherein said body associated receiver is;

(i) configured to decode an encoded signal received from an in vivo transmitter in a low signal to noise ratio (SNR) environment with substantially no error; and

(ii) is sized to be stably associated with a living subject in a manner that does not substantially impact movement of said living subject.

29. (canceled)