Communications systems management using MM-wave based motion sensing

• US 8,260,342 B2
• Filed: 01/06/2010
• Issued: 09/04/2012
• Est. Priority Date: 01/06/2010
• Status: Active Grant

• Current Assignee: Anokiwave, Inc. (Qorvo, Inc.)
• Original Assignee: Anokiwave, Inc. (Qorvo, Inc.)
• Inventors: Jain, Nitin, Rajanish, Fnu, Menon, Gaurav
• Primary Examiner(s): Dao, Minh D
• Application Number:
  US12/683,354
• Publication Number:
  US 20110165844A1
• Time in Patent Office: 972 Days
• Field of Search: 455/522, 455/13.4, 455/163.1, 455/69, 455/127.1, 455/25, 455/63.4, 455/562.1, 455/575.7, 342/372, 342/359, 343/757, 343/766, 343/765, 343/754
• US Class Current: 455/522
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10

Abstract

Two or more transceiver units can interact with each other via millimeter wave radio frequency signals. One of the transceiver units can detect time-varying signals having specific waveforms in order to initiate an action such as establishment of a communication link, powering a piece of equipment and the like. The time-varying signal can be generated by a user moving one of the transceiver units and/or by passing an non-transmissive obstruction in between the transceiver units. Related apparatus, systems, and methods are also disclosed.

Claims

1. A transceiver unit comprising:

a transmitter to transmit millimeter wave radio frequency signals to a remote transceiver unit, the remote transceiver unit having a remote transceiver transmitter, a remote transceiver transmitter antenna, a remote transceiver receiver, and a remote transceiver receiver antenna;

a transmitter antenna coupled to the transmitter;

a receiver to receive millimeter wave radio frequency signals from the remote transceiver unit;

a receiver antenna coupled to the receiver to receive millimeter wave radio frequency signals transmitted by the remote transceiver unit, a strength of the power of the signals received by the receiver antenna being inversely related to a distance between the receiver antenna and the remote transceiver transmitter antenna and being dependent on an orientation of the remote transceiver transmitter antenna in relation to an orientation of the receiver antenna; and

a control circuit coupled to the transmitter and the receiver to selectively control the transmission of signals by the transmitter and to characterize signals received by the receiver, the control circuit initiating an action when a time-varying signal having a pre-defined waveform is received by the receiver.

2. A transceiver unit as in claim 1, wherein the pre-defined waveform is based on the amplitude of the detected signal strength increasing and exceeding a pre-defined threshold.

3. A transceiver unit as in claim 1, wherein the time-varying signal is dependent on a physical medium separating the receiver antenna and the remote transceiver transmitter antenna.

4. A transceiver unit as in claim 1, wherein the time-varying signal is based on a repetitive displacement of the remote transceiver transmitter antenna.

5. A transceiver unit as in claim 1, wherein the time-varying signal is dependent on a movement of the remote transceiver transmitter antenna relative to the receiver antenna.

6. A transceiver unit as in claim 1, wherein the time-varying signal is dependent on a movement of the receiver antenna relative to the remote transceiver transmitter antenna.

7. A transceiver unit as in claim 1, wherein the time-varying signal is dependent on a movement of a non-transmissive element adjacent to the remote transceiver transmitter antenna.

8. A transceiver unit as in claim 1 further comprising:

memory coupled to the control circuit storing one or more of the pre-defined waveforms.

9. A transceiver unit as in claim 1, wherein the control circuit communicates with a remote database to obtain one or more of the pre-defined waveforms.

10. A transceiver unit as in claim 1, wherein the remote transceiver transmitter transmits signal in the 60 GHz band.

11. A transceiver unit as in claim 10, wherein initiated action is an establishment of a communication link between the transceiver unit and the remote transceiver unit in the 60 GHz band.

12. A transceiver unit as in claim 11, wherein the communication link in the 60 GHz band supports data transfer at a rate of up to 6 gigabytes per second.

13. A transceiver unit as in claim 1, wherein the separation distance is less than or equal to 10 meters.

14. A transceiver unit as in claim 13, wherein the separation distance is less than or equal to 25 centimeters.

15. A transceiver unit as in claim 1, wherein the control circuit further identifies the remote transceiver unit based on the received signal.

16. A transceiver unit as in claim 1, wherein the pre-defined waveform comprises of a train of pulses.

17. A transceiver unit as in claim 1, wherein the action comprises initiating communication between the transceiver unit and the remote transceiver unit.

18. A transceiver unit as in claim 17, wherein the communication uses a protocol selected from a group comprising:

wireless network, cell-phone, Bluetooth, wire network and peer-to-peer networks.

19. A transceiver unit as in claim 17 further comprising:

an indicator light that is illuminated when communications are initiated between the transceiver unit and the remote transceiver unit.

20. A transceiver unit as in claim 1, wherein the action comprises generating an activation signal to initiate a subsequent action.

21. A transceiver unit as in claim 1 further comprising a receiver circuit coupled to the receiver, the receiver circuit comprising:

a diode detector coupled to the receiver antenna to receive RF signal received by the receiver antenna, the diode detector rectifying the RF signal to generate a DC level, the diode detector including a biasing inductor connected to ground, the biasing inductor feeding bias for the diode detector;

a capacitor coupled to a cathode of the diode detector for DC generation and storage;

a switch disposed between the diode detector and the receiver antenna to transmit signal from the receiver antenna to the diode detector, the switch having three terminals;

a low-noise amplifier connected to one of the terminals of the switch to amplify the received signal;

a mixer coupled to the low-noise amplifier for down-conversion of the amplified received signal to a baseband signal;

an oscillator to generate a source frequency to be utilized by the mixer in connection with the down-conversion of the amplified received signal to the baseband signal, the oscillator further being coupled to the transmitter; and

a baseband processor to process the baseband signal to recover information contained therein.

22. A system comprising:

a primary transceiver unit; and

a plurality of remote transceiver units, each remote transceiver unit having a remote transceiver transmitter, a remote transceiver transmitter antenna, a remote transceiver receiver, and a remote transceiver receiver antenna;

the primary transceiver unit comprising;

a transmitter to transmit millimeter wave radio frequency signals to the remote transceiver units;

a transmitter antenna coupled to the transmitter;

a receiver to receive millimeter wave radio frequency signals from the remote transceiver units;

a receiver antenna coupled to the receiver to receive millimeter wave radio frequency signals transmitted by the remote transceiver units, a strength of the power of the signals received by the receiver antenna being inversely related to a distance between the receiver antenna and the corresponding remote transceiver transmitter antenna and being dependent on an orientation of the corresponding remote transceiver transmitter antenna in relation to an orientation of the receiver antenna;

a control circuit coupled to the transmitter and the receiver to selectively control the transmission of signals by the transmitter and to characterize signals received by the receiver, the control circuit initiating an action associated with the corresponding remote transceiver unit when a time-varying signal having a pre-defined waveform is received by the receiver.