Integrated antenna system and related component management

Patent metadata

Field	Value
Publication number	US-9778114-B2
Application number	US-201514836323-A
Country	US
Kind code	B2
Filing date	Aug 26, 2015
Priority date	Aug 26, 2015
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

Various arrangements for detecting an object using a passive infrared (PIR) sensor module of a sensor device. A PIR data stream may be received from the PIR sensor module indicative of measurements performed by the PIR sensor module. An indication may be received from a transceiver that identifies a beginning of the data transmission. A portion of the PIR data stream may be blanked in response to receiving the indication of the beginning of the data transmission, the portion of the PIR data stream corresponding to a defined time duration. A presence of an object may be determined using the PIR data stream, excluding the blanked portion.

First claim

What is claimed is:

1. A sensing and communication subsystem, comprising:
a housing;
a passive infrared (PIR) sensor module located within the housing;
an antenna located within the housing;
a wireless communication transceiver located within the housing that transmits data via the antenna, wherein the wireless communication transceiver outputs data indicative of a time period during which a data transmission is occurring;
one or more processors located with the housing that are in communication with the PIR sensor module and the wireless communication transceiver, the one or more processors being configured to:
receive a PIR data stream from the PIR sensor module indicative of measurements performed by the PIR sensor module;
receive from the wireless communication transceiver an indication of a beginning of the data transmission;
blank a first portion of the PIR data stream in response to receiving the indication of the beginning of the data transmission, the first portion of the PIR data stream corresponding to a first defined time duration;
receive from the wireless communication transceiver a second indication of an end of the data transmission;
blank a second portion of the PIR data stream in response to receiving the indication of the end of the data transmission, the second portion of the PIR data stream corresponding to a second defined time duration; and
determine a presence of an object using the blanked PIR data stream.

2. The subsystem of claim 1 , wherein the second defined time duration is a same duration as the first defined time duration.

3. The subsystem of claim 1 , wherein the PIR sensor module is within a distance of 5 cm of the wireless communication transceiver.

4. The subsystem of claim 1 , wherein the wireless communication transceiver is configured to output a status signal that is either high or low depending on whether the wireless communication transceiver is transmitting or not transmitting.

5. The subsystem of claim 1 , wherein the wireless communication transceiver transmits using a wireless local area network protocol.

6. The subsystem of claim 1 , wherein the antenna is a printed circuit board (PCB) mounted loop antenna having a tail.

7. The subsystem of claim 6 , further comprising:
an electronic display located within the housing that is in communication with the one or more processors, wherein the electronic display comprises a metallic shield, wherein:
the metallic shield is electrically connected with the antenna such that the metallic shield serves as the loop antenna's RF ground.

8. The subsystem of claim 7 , wherein the housing comprising a metallic ring that encircles the PIR sensor module, wireless communication transceiver, and the one or more processors along an axis.

9. The subsystem of claim 8 , wherein the metallic shield is perpendicular to the axis, the metallic ring serves as a user input component, and the one or more processors receive data indicative of the metallic ring being rotated clockwise and counterclockwise.

10. The subsystem of claim 7 , wherein the antenna comprises a main loop and a capacitively-coupled tail portion, wherein the main loop and the capacitively-coupled tail portion provide dual-band resonance.

11. A sensing and communication subsystem comprising:
a housing;
a passive infrared (PIR) sensor module located within the housing;
a first antenna located within the housing, wherein the first antenna is a printed circuit board (PCB) mounted loop antenna having a tail;
a first wireless communication transceiver located within the housing that transmits data via the first antenna, wherein the first wireless communication transceiver outputs data indicative of a time period during which a data transmission is occurring;
one or more processors located with the housing that are in communication with the PIR sensor module and the first wireless communication transceiver, the one or more processors being configured to:
receive a PIR data stream from the PIR sensor module indicative of measurements performed by the PIR sensor module;
receive from the first wireless communication transceiver an indication of a beginning of the data transmission;
blank a first portion of the PIR data stream in response to receiving the indication of the beginning of the data transmission, the first portion of the PIR data stream corresponding to a first defined time duration; and
determine a presence of an object using the blanked PIR data stream;

an electronic display located within the housing that is in communication with the one or more processors, wherein the electronic display comprises a metallic shield, wherein:
the metallic shield is electrically connected with the first antenna such that the metallic shield serves as the loop antenna's RF ground; and

a second antenna located within the housing, wherein:
the second antenna is coplanar with the first antenna;
the second antenna is a second PCB-mounted loop antenna having a tail; and
the second antenna is electrically connected with the metallic shield of the electronic display such that the second antenna and the first antenna both use the metallic shield as RF ground; and

a second wireless communication transceiver located within the housing that transmits and receives data via the second antenna.

12. A method for detecting an object using a passive infrared (PIR) sensor module, the method comprising:
receiving, by a processing system of a sensor device, a PIR data stream from the PIR sensor module of the sensor device, the PIR data stream being indicative of measurements performed by the PIR sensor module;
while receiving the PIR data stream, receiving, by the processing system from a wireless communication transceiver, an indication of a beginning of a data transmission by a wireless transceiver of the sensor device;
blanking, by the processing system, a first portion of the PIR data stream in response to receiving the indication of the beginning of the data transmission, the first portion of the PIR data stream corresponding to a defined time duration;
receiving, by the processing system of the sensor device, from the wireless communication transceiver a second indication of an end of the data transmission; and
blanking, by the processing system of the sensor device, a second portion of the PIR data stream in response to receiving the indication of the end of the data transmission, the second portion of the PIR data stream corresponding to a second defined time duration; and
determining, by the processing system, a presence of the object using the PIR data stream, excluding the blanked portion of the received PIR data stream.

13. The method for detecting the object using the PIR sensor module of claim 12 , further comprising:
storing, by the processing system of the sensor device, the defined time duration.

14. The method for detecting the object using the PIR sensor module of claim 12 , further comprising:
transmitting data, by the wireless communication transceiver, via an antenna that uses a metallic backplane of an electronic display of the sensor device.

15. The method for detecting the object using the PIR sensor module of claim 14 , further comprising:
activating, by the processing system of the sensor device, the electronic display, such that a temperature is displayed by the electronic display.

16. A method for detecting an object using a passive infrared (PIR) sensor module, the method comprising:
receiving, by a processing system of a sensor device, a PIR data stream from the PIR sensor module of the sensor device, the PIR da

Assignees

• Google Inc

Inventors

• Honjo Hirofumi
• Wang Shu-Li
• Sivasithambaresan Arjuna

Classifications

• G01J5/70

  Passive compensation of pyrometer measurements, e.g. using ambient temperature sensing or sensing of temperature within housing · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• G01J5/0025 Primary

  Living bodies (ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00) · CPC title

• G01V8/10

  Detecting, e.g. by using light barriers (by reflection from the object G01S17/00) · CPC title

• H04W84/18

  Self-organising networks, e.g. ad-hoc networks or sensor networks · CPC title