# US 7,610,813 B2 · Method and apparatus for a self-powered RFID-readable pedometer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,813 B2 - Document ID: US7610813B2 - Status: Granted - Kind: B2 - Application number: 11/529,548 - Filed: 2006-09-29 - Published: 2008-04-03 - Granted: 2009-11-03 - Earliest claimed: 2006-09-29 - Assignees: Intel Corporation - Inventors: Robert D. Hughes; Terry Dishongh - Web page: https://patentgrep.com/patent/US7610813B2 ## CPC - A61B 5/112: {Gait analysis} - A61B 5/0002: {Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network (endoradiosondes A61B5/07)} - A61B 5/1123: {Discriminating type of movement, e.g. walking or running (A61B5/1116, A61B5/112 take precedence)} - A61B 5/6829: {Foot or ankle} - G01C 22/006: {Pedometers} - A61B 5/1112: {Global tracking of patients, e.g. by using GPS} - A61B 2562/08: Sensors provided with means for identification, e.g. barcodes or memory chips - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) ## Abstract A device, system and method for analyzing a user's motion using a piezoelectric film to generate a plurality of deformation signals based upon an associated plurality of deformations, an EEPROM to record data associated with the plurality of deformation signals, and a transceiver to receive at least a portion of the recorded data from the EEPROM and to transmit data, wherein the analysis may determine an abnormality in the user's gait. ## Claims ### Claim 1 A device, comprising: a piezoelectric film to generate a plurality of deformation signals based upon an associated plurality of deformations; a real time clock to generate timing data; an EEPROM to record data associated with the plurality of compression signals and the timing data; an RFID tag to receive at least a portion of the recorded data from the EEPROM and to transmit at least a portion of the received data; and a processor to analyze the deformation signals to determine abnormalities in a user's step, wherein the device is a pedometer or gait sensor. ### Claim 2 (depends on 1) An apparatus comprising the device of claim 1, wherein the apparatus is a footwear or a piece of clothing. ### Claim 3 (depends on 1) The device of claim 1, wherein the deformation signals are analyzed in relation to the timing data. ### Claim 4 (depends on 1) A system for diagnosing a user's gait, the system comprising: a plurality of the devices according to claim 1, the plurality of the devices comprising a first device and a second device; a reader to receive data from the transceivers of the first and second devices; and a processor to receive the data from the reader; wherein the processor is configured to analyze the deformation signals generated by the first and second devices. ### Claim 5 (depends on 4) The system of claim 4, wherein the first device and the second device are removably attached to a footwear. ### Claim 6 (depends on 4) The system of claim 4, wherein the processor is configured to analyze the deformation signals generated by the plurality of the devices to determine if there is an abnormality in a user's gait. ### Claim 7 (depends on 4) The system of claim 4, wherein a duration of the deformation signals is analyzed. ### Claim 8 (depends on 4) The system of claim 4, wherein an amplitude of the deformation signals is analyzed. ### Claim 9 (depends on 4) The system of claim 4, wherein an amplitude of the deformation signals is analyzed with respect to the duration of the deformation signals. ### Claim 10 (depends on 4) The system of claim 4, wherein the reader is an RFID reader. ### Claim 11 (depends on 4) The system of claim 4, wherein a deformation signal generated by the first device and a deformation signal generated by the second device are compare to diagnose the user's gait. ### Claim 12 A method of diagnosing a user's gait, the method comprising: obtaining or manufacturing a system for diagnosing a user's gait, the system comprising: a plurality of the devices, each device comprising a piezoelectric film to generate a plurality of deformation signals based upon an associated plurality of deformations; a real time clock to generate timing data; an EEPROM to record data associated with the plurality of compression signals and the timing data; and an a transceiver to receive at least a portion of the recorded data from the EEPROM and to transmit at least a portion of the received data, the plurality of the devices comprising a first device and a second device; a reader to receive data from the transceivers of the first and second devices; and a processor to receive the data from the reader; wherein the processor is configured to analyze the deformation signals generated by the first and second devices; transmitting data from the first and second devices to a processor; and analyzing the deformation signals generated by the first and second devices. ### Claim 13 (depends on 12) The method of claim 12, further comprising producing data related to a user's gait based on the analyzing of the deformation signals. ### Claim 14 (depends on 12) The system of claim 12, wherein the analyzing the deformation signals comprises analyzing a duration of the deformation signals. ### Claim 15 (depends on 12) The system of claim 12, wherein the analyzing the deformation signals. comprises analyzing an amplitude of the deformation signals. ### Claim 16 A system for diagnosing a user's gait, comprising: a plurality of the devices, each device comprising a piezoelectric film to generate a plurality of deformation signals based upon an associated plurality of deformations; a real time clock to generate timing data; an EEPROM to record data associated with the plurality of compression signals and the timing data; and an a transceiver to receive at least a portion of the recorded data from the EEPROM and to transmit at least a portion of the received data, the plurality of the devices comprising a first device and a second device; a reader to receive data from the transceivers of the first and second devices; and a processor to receive the data from the reader; wherein the processor is configured to analyze the deformation signals generated by the first and second devices; wherein the first and second devices are configured to transmit data to a processor that is configured to analyze the deformation signals generated by the first and second devices. ### Claim 17 (depends on 1) The device of claim 1, wherein the device contains no batteries and electrical power in the device is self generated. ### Claim 18 (depends on 1) The device of claim 1, wherein the device contains no batteries and electrical power in the device is self generated. ### Claim 19 (depends on 17) The device of claim 17, wherein the device is a pedometer or a gait sensor. ### Claim 20 (depends on 18) The device of claim 18, wherein the device is a pedometer or gait sensor. ### Claim 21 (depends on 12) The method of claim 12, further comprising measuring a time between a heel strike and a toe strike.