# US 10,872,048 B2 · Remotely-powered sensing system with multiple sensing devices

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- Number: US 10,872,048 B2
- Document ID: US10872048B2
- Status: Granted
- Kind: B2
- Application number: 15/709,679
- Filed: 2017-09-20
- Published: 2018-05-17
- Granted: 2020-12-22
- Earliest claimed: 2014-01-13
- Assignees: Senseonics, Incorporated
- Applicants: Senseonics Incorporated
- Inventors: Andrew DeHennis; Abhi Chavan; James Masciotti
- Web page: https://patentgrep.com/patent/US10872048B2

## CPC

- G06F 13/287: {Multiplexed DMA (G06F13/30 takes precedence)}
- G01N 33/50: Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing (measuring or testing processes involving enzymes or microorganisms, compositions or test papers therefor; processes for forming such compositions, condition responsive control in microbiological or enzymological processes C12Q)
- H02J 50/10: using inductive coupling
- H04B 5/24: Inductive coupling
- H04B 5/79: for data transfer in combination with power transfer
- Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04B: TRANSMISSION
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A sensing system including analyte sensing devices, an interface device, and shared communication device. The interface device may be configured to receive a power signal and generate power for powering the sensing devices and to convey data signals generated by the sensing devices. The sensing system may be configured to receive addressed and unaddressed commands. The sensing devices may be configured to perform activities (e.g., measurement sequences) in parallel in response to the unaddressed commands (e.g., unaddressed measurement commands). The sensing devices may be configured to only perform activities (e.g., conveying measurement data) in response to addressed commands (e.g., addressed read measurement data commands) if the sensing devices determine that the addressed commands are addressed to them. The sensing devices may be configured to perform different measurement sequences in response to an unaddressed measurement command to minimize interference caused by the sensing devices performing the measurement sequences in parallel.

## Claims

### Claim 1

A sensing system comprising:
an interface device;
a shared communication device connected to the interface device;
a first analyte sensing device connected to the shared communication device and configured to perform a first measurement sequence in response to receiving an unaddressed measurement command via the interface device and the shared communication device; and
a second analyte sensing device connected to the shared communication device and configured to perform a second measurement sequence in response to receiving the unaddressed measurement command via the interface device and the shared communication device, wherein the first and second measurement sequences are different.

### Claim 2 (depends on 1)

The sensing system of claim 1, further comprising a third analyte sensing device connected to the shared communication device and configured to perform a third measurement sequence in response to receiving the unaddressed measurement command via the interface device and the shared communication device, wherein the third measurement sequence is different than the first and second measurement sequences.

### Claim 3 (depends on 1)

The sensing system of claim 1, wherein the first analyte sensing device is configured to perform the first measurement sequence at the same time that the second analyte sensing device performs the second measurement sequence.

### Claim 4 (depends on 3)

The sensing system of claim 3, wherein the first measurement sequence is configured to turn a light source of the first sensing device on at times different from times at which the second measurement sequence turns a light source of the second sensing device on.

### Claim 5 (depends on 1)

The sensing system of claim 1, wherein the first analyte sensing device is configured to:
receive an addressed measurement command via the interface device and the shared communication device;
determine whether the addressed measurement command is addressed to the first analyte sensing device;
if the addressed measurement command is determined to be addressed to the first analyte sensing device, perform a measurement sequence; and
if the addressed measurement command is determined to be not addressed to the first analyte sensing device, not perform a measurement sequence in response to the addressed measurement command.

### Claim 6 (depends on 5)

The sensing system of claim 5, wherein the measurement sequence performed by the first analyte sensing device in response to the addressed measurement command is the first measurement sequence.

### Claim 7 (depends on 1)

The sensing system of claim 1, wherein the first analyte sensing device is configured to:
receive an addressed read measurement data command via the interface device and the shared communication device;
determine whether the addressed read measurement data command is addressed to the first analyte sensing device;
if the addressed read measurement data command is determined to be addressed to the first analyte sensing device, convey measurement data via the shared communication device and interface device; and
if the addressed read measurement data command is determined to be not addressed to the first analyte sensing device, not convey measurement data in response to the addressed read measurement data command.

### Claim 8 (depends on 1)

The sensing system of claim 1, wherein the first analyte sensing device comprises a light source, and the first measurement sequence comprises measuring one or more characteristics of the light source.

### Claim 9 (depends on 1)

The sensing system of claim 1, wherein the interface device is an inductive element.

### Claim 10 (depends on 1)

The sensing system of claim 1, further comprising a sensor housing, wherein the interface device, shared communication device, and first and second analyte sensing devices are contained within the sensor housing.

### Claim 11 (depends on 1)

The sensing system of claim 1, wherein the shared communication device comprises shared wires.

### Claim 12

A method comprising:
receiving an unaddressed measurement command at first and second analyte sensing devices of a sensing system via an interface device and shared communication device of the sensing system;
using the first analyte sensing device to perform a first measurement sequence in response to receiving the unaddressed measurement command;
using the second analyte sensing device to perform a second measurement sequence in response to receiving the unaddressed measurement command, wherein the first and second measurement sequences are different.

### Claim 13 (depends on 12)

The method of claim 12, further comprising:
receiving the unaddressed measurement command at a third analyte sensing devices of the sensing system via the interface device and the shared communication device of the sensing system; and
using the third analyte sensing device to perform a third measurement sequence in response to receiving the unaddressed measurement command, wherein the third measurement sequence is different than the first and second measurement sequences.

### Claim 14 (depends on 12)

The method of claim 12, wherein the first analyte sensing device is configured to perform the first measurement sequence at the same time that the second analyte sensing device performs the second measurement sequence.

### Claim 15 (depends on 14)

The method of claim 14, wherein using the first analyte sensing device to perform the first measurement sequence comprises turning a light source of the first analyte sensing device on at times different from times at which the second measurement sequence turns a light source of the second sensing device on.

### Claim 16 (depends on 12)

The method of claim 12, further comprising:
receiving an addressed measurement command at the first and second analyte sensing devices of the sensing system via the interface device and the shared communication device of the sensing system;
using the first analyte sensing device to determine whether the addressed measurement command is addressed to the first analyte sensing device;
using the first analyte sensing device to perform a measurement sequence in response to the addressed measurement command if the first analyte sensing device determines that the addressed measurement command is addressed to the first analyte sensing device, wherein the first analyte sensing device does not perform a measurement sequence in response to the addressed measurement command if the first analyte sensing device determines that the addressed measurement command is not addressed to the first analyte sensing device;
using the second analyte sensing device to determine whether the addressed measurement command is addressed to the second analyte sensing device; and
using the second analyte sensing device to perform a measurement sequence in response to the addressed measurement command if the second analyte sensing device determines that the addressed measurement command is addressed to the second analyte sensing device, wherein the second analyte sensing device does not perform a measurement sequence in response to the addressed measurement command if the second analyte sensing device determines that the addressed measurement command is not addressed to the second analyte sensing device.

### Claim 17 (depends on 16)

The method of claim 16, wherein the measurement sequence performed by the first analyte sensing device in response to the addressed measurement command is the first measurement sequence, and the measurement sequence performed by the second analyte sensing device in response to the addressed measurement command is the second measurement sequence.

### Claim 18 (depends on 12)

The method of claim 12, further comprising:
receiving an addressed read measurement data command at the first and second analyte sensing devices of the sensing system via the interface device and the shared communication device of the sensing system;
using the first analyte sensing device to determine whether the addressed read measurement data command is addressed to the first analyte sensing device;
using the first analyte sensing device to convey measurement data if the first analyte sensing device determines that the addressed read measurement data command is addressed to the first analyte sensing device, wherein the first analyte sensing device does not convey measurement data if the first analyte sensing device determines that the addressed read measurement data command is not addressed to the first analyte sensing device;
using the second analyte sensing device to determine whether the addressed read measurement data command is addressed to the second analyte sensing device; and
using the second analyte sensing device to convey measurement data if the second analyte sensing device determines that the addressed read measurement data command is addressed to the second analyte sensing device, wherein the second analyte sensing device does not convey measurement data if the second analyte sensing device determines that the addressed read measurement data command is not addressed to the second analyte sensing device.

### Claim 19 (depends on 12)

The method of claim 12, wherein using the first analyte sensing device to perform the first measurement sequence comprises measuring one or more characteristics of a light source of the first analyte sensing device.

### Claim 20 (depends on 12)

The method of claim 12, wherein the interface device is an inductive element.

### Claim 21

A sensing system comprising:
an interface device;
a shared communication device connected to the interface device;
a first analyte sensing device connected to the shared communication device and configured to:
receive an unaddressed measurement command via the interface device and the shared communication device,
perform a measurement sequence in response to receiving the unaddressed measurement command,
receive an addressed read measurement data command via the interface device and the shared communication device,
determine whether the addressed read measurement data command is addressed to the first analyte sensing device,
if the addressed read measurement data command is determined to be addressed to the first analyte sensing device, convey measurement data via the shared communication device and interface device; and
if the addressed read measurement data command is determined to be not addressed to the first analyte sensing device, not convey measurement data in response to the addressed read measurement data command; and
a second analyte sensing device connected to the shared communication device and configured to:
receive the unaddressed measurement command via the interface device and the shared communication device,
perform a measurement sequence in response to receiving the unaddressed measurement command,
receive the addressed read measurement data command via the interface device and the shared communication device,
determine whether the addressed read measurement data command is addressed to the second analyte sensing device,
if the addressed read measurement data command is determined to be addressed to the second analyte sensing device, convey measurement data via the shared communication device and interface device; and
if the addressed read measurement data command is determined to be not addressed to the second analyte sensing device, not convey measurement data in response to the addressed read measurement data command.

### Claim 22 (depends on 21)

The sensing system of claim 21, further comprising a third analyte sensing device connected to the shared communication device and configured to:
receive the unaddressed measurement command via the interface device and the shared communication device,
perform a measurement sequence in response to receiving the unaddressed measurement command,
receive the addressed read measurement data command via the interface device and the shared communication device,
determine whether the addressed read measurement data command is addressed to the third analyte sensing device,
if the addressed read measurement data command is determined to be addressed to the third analyte sensing device, convey measurement data via the shared communication device and interface device; and
if the addressed read measurement data command is determined to be not addressed to the third analyte sensing device, not convey measurement data in response to the addressed read measurement data command.

### Claim 23 (depends on 21)

The sensing system of claim 21, wherein the shared communication device comprises shared wires.

### Claim 24

A method comprising:
receiving an unaddressed measurement command at first and second analyte sensing devices of a sensing system via an interface device and shared communication device of the sensing system;
using the first analyte sensing device to perform a measurement sequence in response to receiving the unaddressed measurement command;
using the second analyte sensing device to perform a measurement sequence in response to receiving the unaddressed measurement command;
receiving an addressed read measurement data command at the first and second analyte sensing devices of the sensing system via the interface device and the shared communication device of the sensing system;
using the first analyte sensing device to determine whether the addressed read measurement data command is addressed to the first analyte sensing device;
using the first analyte sensing device to convey measurement data if the first analyte sensing device determines that the addressed read measurement data command is addressed to the first analyte sensing device, wherein the first analyte sensing device does not convey measurement data if the first analyte sensing device determines that the addressed read measurement data command is not addressed to the first analyte sensing device;
using the second analyte sensing device to determine whether the addressed read measurement data command is addressed to the second analyte sensing device; and
using the second analyte sensing device to convey measurement data if the second analyte sensing device determines that the addressed read measurement data command is addressed to the second analyte sensing device, wherein the second analyte sensing device does not convey measurement data if the second analyte sensing device determines that the addressed read measurement data command is not addressed to the second analyte sensing device.

### Claim 25 (depends on 24)

The method of claim 24, further comprising:
receiving the unaddressed measurement command at a third analyte sensing devices of the sensing system via the interface device and the shared communication device of the sensing system;
using the third analyte sensing device to perform a measurement sequence in response to receiving the unaddressed measurement command;
receiving the addressed read measurement data command at the third analyte sensing device of the sensing system via the interface device and the shared communication device of the sensing system;
using the third analyte sensing device to determine whether the addressed read measurement data command is addressed to the third analyte sensing device;
using the third analyte sensing device to convey measurement data if the third analyte sensing device determines that the addressed read measurement data command is addressed to the third analyte sensing device, wherein the third analyte sensing device does not convey measurement data if the third analyte sensing device determines that the addressed read measurement data command is not addressed to the third analyte sensing device.