WIRELESS WEARABLE APPARATUS, SYSTEM, AND METHOD

• US 20150248833A1
• Filed: 09/18/2013
• Published: 09/03/2015
• Est. Priority Date: 09/21/2012
• Status: Abandoned Application

• Current Assignee: Proteus Digital Health, Inc. (Otsuka Holdings Company Limited)
• Original Assignee: Proteus Digital Health, Inc. (Otsuka Holdings Company Limited)
• Inventors: Arne, Lawrence, Graves, Michael, Ivanchenko, Ilya
• Application Number:
  US14/429,875
• Publication Number:
  US 20150248833A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: G01D 9/005 Solid-state data loggers
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

Disclosed is a wireless wearable sensor apparatus. The wireless wearable sensor apparatus includes a sensor platform having a signal processing device with a computational engine to implement signal processing tasks. The sensor platform is configured to receive signals from at least one sensor coupled thereto. A wireless communication circuit is coupled to the sensor platform. The wireless communication circuit comprises a link master controller configured to communicate to a wireless device and transfer data. In one aspect, the link master controller is configured to control data transmission over a communication link established with to wireless device, comprising timing control and frequency control. The wireless wearable sensor may include a processor, a memory, and an accelerometer coupled to the sensor platform.

Claims

1-3. -3. (canceled)

4. A wireless wearable sensor apparatus, comprising:

a sensor platform comprising a signal processing device comprising a computational engine to implement signal processing tasks, the sensor platform configured to receive signals from at least one sensor coupled thereto; and

a wireless communication circuit coupled to the sensor platform, wherein the wireless communication circuit comprises a link master controller configured to communicate with a wireless device and transfer data thereto; and

wherein the link master controller is configured to control data transmission over a communication link established with the wireless device, comprising timing control and frequency control;

wherein the signal processing device comprises hard coded signal processing functions; and

wherein at least a portion of the signal processing device comprises programmable signal processing functions and execution units for optimized calculations.

5. The wireless wearable sensor apparatus of claim 4, wherein the signal processing device comprises an interface to a processor.

6. The wireless wearable sensor apparatus of claim 5, wherein the interface comprises:

at least one first-in-first-out (FIFO) register;

dual port memories; and

a direct memory access (DMA) engine to directly access processor memory.

7. The wireless wearable sensor apparatus of claim 5, wherein the interface comprises contention recognition or avoidance, and further comprising an electronics interface module coupled to the sensor platform.

9. The wireless wearable sensor apparatus of claim 7, comprising:

a sensor interface coupled to the sensor platform;

a flex circuit coupled to the sensor interface; and

one or more sensors coupled to the flex circuit.

8. (canceled)

10-11. -11. (canceled)

12. A wireless wearable sensor apparatus, comprising:

a sensor platform comprising a signal processing device comprising a computational engine to implement signal processing tasks, the sensor platform configured to receive signals from at least one sensor coupled thereto;

a wireless communication circuit coupled to the sensor platform, wherein the wireless communication circuit comprises a link master controller configured to establish a link to communicate with a wireless device and transfer data thereto; and

an accelerometer coupled to the sensor platform;

wherein the link master controller is configured to control data transmission over a communication link established with the wireless device, comprising timing control and frequency control; and

further comprising a resampling frequency correction processor.

13. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor is provided in the accelerometer.

14. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor is provided in the signal processing device.

15. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor comprises:

a reference clock;

a fixed up-sample block;

a digital filter;

a programmable down-sample block; and

a control circuit that selects a down-sample coefficient based on comparison of timing of an accelerometer signal and the reference clock.

16. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor is configured to synchronize to a reference clock in a sliding window to generate a precise sampling rate.

17. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor is configured to set the down-sampling coefficient for each frame of data from the accelerometer signal.

18. The wireless wearable sensor apparatus of claim 12, wherein the resampling frequency correction processor is configured to track an accelerometer timing signal continuously and select the down-sampling coefficient to minimize any accumulated timing error.

19-20. -20. (canceled)

21. A wireless wearable sensor apparatus, comprising:

a sensor platform comprising;

a signal processing device comprising a computational engine to implement signal processing tasks, the sensor platform configured to receive signals from at least one sensor coupled thereto; and

a processor;

a wireless communication circuit coupled to the sensor platform, wherein the wireless communication circuit comprises a link master controller configured to establish a link to communicate with a wireless device and transfer data thereto; and

a memory coupled to the sensor platform;

wherein the link master controller is configured to control data transmission over a communication link established with the wireless device, comprising timing control and frequency control; and

wherein the processor employs a low-power low-memory data storage and transfer scheme wherein sensor data is stored as records, each with a type identifier.

22. The wireless wearable sensor apparatus of claim 21, wherein the data records are transferred to an external device by the wireless communication circuit in a packet payload in a format that is the same format used to store the data records in the memory.

23. The wireless wearable sensor apparatus of claim 21, wherein the data records are stored in the memory sequentially with variable length to optimize space usage in the memory.

24. The wireless wearable sensor apparatus of claim 21, comprising a data directory that allows fast read access to the data records stored in the memory.

25. The wireless wearable sensor apparatus of claim 24, wherein the data directory allows fast counting of the data records by type.

26. The wireless wearable sensor apparatus of claim 21, wherein each data record stored in the memory comprises an error-detecting code to detect data record corruption.

27. The wireless wearable sensor apparatus of claim 21, wherein the processor employs a high-assurance integrity data storage and transfer scheme.

28. The wireless wearable sensor apparatus of claim 26, wherein when the processor reads a data record from the memory prior to data packet transfer to an external device by the wireless communication circuit, the error-detecting code is checked by the processor.

29. The wireless wearable sensor apparatus of claim 21, wherein when the processor detects corruption of the stored data record, an error signal is sent to an external device.

30. The wireless wearable sensor apparatus of claim 28, wherein each packet transferred from the wireless communication circuit to the external device contains an error-detecting to be used by the external device to detect packet corruption.