# US 2019/0172335 A1 · Wearable transponder alert and monitoring system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0172335 A1 - Document ID: US20190172335A1 - Status: Published application - Kind: A1 - Application number: 16/324,376 - Filed: 2017-08-07 - Published: 2019-06-06 - Earliest claimed: 2016-08-08 - Inventors: Kayla Simone JOHNSTON-MITCHELL - Web page: https://patentgrep.com/patent/US20190172335A1 ## CPC - G08B 21/0453: {worn on the body to detect health condition by physiological monitoring, e.g. electrocardiogram, temperature, breathing (detecting, measuring or recording for diagnostic purposes A61B5/00)} - G08B 21/182: {Level alarms, e.g. alarms responsive to variables exceeding a threshold} - G08B 25/016: {Personal emergency signalling and security systems (emergency non-personal manually actuated alarm activators G08B25/12)} - H04M 11/04: with alarm systems, e.g. fire, police or burglar alarm systems - H04W 4/029: Location-based management or tracking services - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A wearable personal safety device includes a housing unit having skin contact and including a radio frequency transponder configured to receive, from a mobile communication device, an initiating signal including a unique user identifier and establish a connection therewith, the transponder being configured to detect biometric and physiological parameter values of the skin, memory configured to store data indicative of the detected biometric and physiological parameter values, a rechargeable battery, and a processor configured to, in response to one of the detected biometric and physiological parameter values not meeting a corresponding threshold, cause the transponder to send to the communication device a request, including the unique identifier, to issue a personal emergency alert. ## Claims ### Claim at position 1 1-23. (canceled) ### Claim 24 A wearable personal safety device comprising: a housing unit having skin contact and including a radio frequency transponder configured to: receive, from a mobile communication device, an initiating signal including a unique user identifier and establish a connection therewith, the transponder being configured to detect biometric and physiological parameter values of the skin, memory configured to store data indicative of the detected biometric and physiological parameter values, a rechargeable battery, and a processor configured to, in response to one of the detected biometric and physiological parameter values not meeting a corresponding threshold, cause the transponder to send to the communication device a request, including the unique identifier, to issue a personal emergency alert. ### Claim 25 (depends on 24) The device of claim 24, wherein the transponder is further configured to, upon establishing the connection with the communication device, maintains the connection by periodically sending the detected biometric and physiological parameter values to the communication device. ### Claim 26 (depends on 24) The device of claim 24, wherein the request to issue the alert is in response to several detected biometric and physiological parameter values not meeting the corresponding thresholds. ### Claim 27 (depends on 24) The device of claim 24, wherein the issuance of the alert is further in response to an absence of user input to a user prompt. ### Claim 28 (depends on 27) The device of claim 27, wherein the issuance of the alert is in response to an absence of user input to at least one of a plurality of prompts arranged in a sequence of increasing urgency. ### Claim 29 (depends on 24) The device of claim 24, wherein the signal request to the communication device, from the transponder, further includes a date and time of the sending and geographic location of the personal safety device. ### Claim 30 (depends on 29) The device of claim 29, wherein the signal request to the communication device, from the transponder, further includes a distance traveled to the location, a travel time to the location, or a length of stay at the location. ### Claim 31 A wearable device comprising: a housing unit including a radio frequency transponder configured to initiate detecting biometric parameter values of skin proximate to the housing unit in response to receiving an initiation signal including a unique user identifier from a mobile communication device, memory configured to store data indicative of the detected biometric parameter values, a rechargeable battery, and a processor configured to, in response to several values not meeting corresponding thresholds, send to the communication device a request to issue a personal emergency alert. ### Claim 32 (depends on 31) The device of claim 31, wherein the communication device is configured to, in response to the request, generate a plurality of user prompts and issue the alert when failing to receive user input to the prompts. ### Claim 33 (depends on 32) The device of claim 32, wherein the prompts are arranged in a sequence of increasing urgency. ### Claim 34 (depends on 31) The device of claim 31, wherein the communication device is configured to prioritize the issuance of the alert over at least one of receiving another signal, sending another signal, and performing a device operation unrelated to the issuance. ### Claim 35 (depends on 31) The device of claim 31, wherein the request includes a date and time of the sending and geographic location of the wearable device. ### Claim 36 (depends on 35) The device of claim 35, wherein the signal request to the communication device, from the transponder, further includes a distance traveled to the location, a travel time to the location, or a length of stay at the location. ### Claim 37 (depends on 31) The device of claim 31, wherein the signal request to the communication device, from the transponder, request includes a unique identifier and the initiation of the alert is in response to the identifier corresponding to a previously-stored identifier of the communication device. ### Claim 38 A personal safety system comprising: a mobile communication device including a wireless radio frequency antenna; and a wearable device including a housing unit proximate to the skin, a transponder configured to establish communication with the communication device to receive interval signals therefrom and detect biometric parameter values of the skin, a rechargeable battery, and a processor configured to, in response to each interval signal, cause the transponder to send to the communication device a corresponding return interval signal including the detected biometric values, such that the communication device issues a personal emergency alert when the communication device fails to receive the return interval signal including the values. ### Claim 39 (depends on 38) The device of claim 38, wherein the issuing is further in response to absence of user input requested via a plurality of generated user prompts arranged in a sequence of escalating urgency. ### Claim 40 (depends on 38) The device of claim 38, wherein the issuing includes prioritizing sending of the alert signal over receiving or sending of another signal. ### Claim 41 (depends on 38) The device of claim 38, wherein each return interval signal includes a date and time of the sending of the return interval signal and geographic location of the wearable device and the alert includes the date, time, and location included in a last received return interval signal. ### Claim 42 (depends on 41) The device of claim 41, wherein the alert further includes distance traveled to the location, a travel time to the location, or a length of stay at the location included in a last received return interval signal. ### Claim 43 (depends on 38) The device of claim 38, wherein each return interval signal includes a unique identifier and the alert is in response to the identifier of a last received interval signal corresponding to a previously-stored identifier of the communication device.