Claims
- 1-28. (Canceled)
- 29. A wireless ultrasonic controller, consisting of:
at least one piezoelectric transducer, capable of converting between ultrasonic signals and electrical signals; a power source, for providing power; a data storage device, for storing information; and, a microprocessor, for performing functions associated with the controller and directing information to the display.
- 30. The wireless ultrasonic controller of claim 29, further comprising a display, for displaying information to a controller operator;
- 31. The wireless ultrasonic controller of claim 29, wherein the power source provides power from an energy storage device.
- 32. The wireless ultrasonic controller of claim 31, wherein the energy storage device is a battery.
- 33. The wireless ultrasonic controller of claim 32, wherein the battery is capable of being recharged.
- 34. The wireless ultrasonic controller of claim 32, wherein the battery is capable of being inductively recharged.
- 35. The wireless ultrasonic controller of claim 29, wherein the at least one piezoelectric transducer is a thin film piezoelectric transducer.
- 36. The wireless ultrasonic controller of claim 35, wherein the at least one thin film piezoelectric transducer is comprised of at least one Polyvinylidene fluoride film.
- 37. The wireless ultrasonic controller of claim 35, wherein the at least one thin film piezoelectric transducer is comprised of two Polyvinylidene fluoride films.
- 38. The wireless ultrasonic controller of claim 29, wherein the at least one memory storage device is capable of storing at least eight kilobytes of data.
- 39. The wireless ultrasonic controller of claim 29, further comprising an alarm for providing sensorial feedback to a controller operator.
- 40. The wireless ultrasonic controller of claim 39, wherein the feedback is provided visually.
- 41. The wireless ultrasonic controller of claim 39, wherein the feedback is provided audibly.
- 42. The wireless ultrasonic controller of claim 39, wherein the feedback is provided through tactile stimulation.
- 43. The wireless ultrasonic controller of claim 29, further comprising a low noise amplifier, for amplifying weak electrical signals.
- 44. The wireless ultrasonic controller of claim 43, further comprising a switch for controlling data flow between output from the recognition circuit, input to the low noise amplifier, and the at least one transducer.
- 45. The wireless ultrasonic controller of claim 29, further comprising a crystal, for frequency tuning the output of the recognition circuit.
- 46-56. (Canceled)
PRIORITY CLAIM
[0001] The present invention is related to, and claims priority from, U.S. Provisional Patent Application Ser. No. 60/369,881, filed Apr. 5, 2002 entitled “Portable or Wearable Proximity Security Device”, the teachings of which are incorporated herein in their entirety.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60369881 |
Apr 2002 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
10237175 |
Sep 2002 |
US |
Child |
10848176 |
May 2004 |
US |