Underwater signal conversion

Patent metadata

Field	Value
Publication number	US-10680676-B2
Application number	US-201715729830-A
Country	US
Kind code	B2
Filing date	Oct 11, 2017
Priority date	Sep 8, 2014
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

Various embodiments associated with signal conversion while underwater are described. A source can transmit an alternating current signal with a relatively high frequency over a relatively long distance. The alternating current signal with the relatively high frequency can be converted to an alternating current signal with a relatively low frequency. An example of this conversion can be done by converting the alternating current signal with the relatively high frequency into a direct current signal. The direct current signal can then be converted into the alternating current signal with the relatively low frequency. The alternating current signal with the relatively low frequency can be transmitted from a transmission coil to a pick-up coil. After reception by the pick-up coil the alternating current signal with the relatively low frequency can be processed, such as processed to determine a direction of the source of the alternating current signal with the relatively high frequency.

First claim

What is claimed is:

1. A method of determining a location of a base signal from a signal source, the method comprising:
emitting a high frequency alternating current signal from the signal source while underwater, where the high frequency alternating current signal is the base signal from which a location information set is being ascertained,
converting, by a receiver, the high frequency alternating current signal to a low frequency alternating current signal;
receiving, by a diving glove, a low frequency alternating current signal while the diving glove is underwater; and
converting, by a frequency-to-voltage converter from the diving glove, the low frequency alternating current signal to a direct current voltage;
processing, by way of a microcontroller, the direct current voltage to identify a specific voltage; and
determining, by way of the microcontroller, the location of the base signal according to the specific voltage value in a look-up table.

2. The method of claim 1 ,
where the low frequency alternating current signal is received by way of an inductive pickup in the diving glove.

3. The system of claim 2 ,
where the low frequency alternating current signal is received from a transmitter held by way of the diving glove and
where the transmitter transmits the low frequency alternating current signal by way of an inductive transmitter.

4. The method of claim 3 ,
where the diving glove is part of a bodysuit.

5. The method of claim 1 , comprising:
causing display of an information set based, at least in part, on the location in a display of an underwater mask.

6. The method of claim 5 ,
where the information set includes proximity information with regard to the location and a line of sight for a wearer of the mask.

7. A system for determination of a location of a base signal from a signal source, the signal comprising:
a signal source component configured to generate a high frequency alternating current signal from the signal source while underwater, where the high frequency alternating current signal is the base signal from which a location information set is being ascertained;
a receiver configured to convert the high frequency alternating current signal to a low frequency alternating current signal; and
a diving glove, configured to retain a human hand, comprising a housing,
where the housing houses a frequency-to-voltage converter and a microcontroller,
where the frequency-to-voltage converter is configured to receive the low frequency alternating current signal while the diving glove is underwater and converts the low frequency alternating current signal to a direct current voltage, and
where the microcontroller is configured to process the direct current voltage to identify a specific voltage value and determine the location of the base signal according to a specific voltage value in a look-up table.

8. The system of claim 7 ,
where the receiver is an inductive pickup.

9. The system of claim 8 ,
where the low frequency alternating current signal is received from a transmitter held by way of the diving glove and
where the transmitter transmits the low frequency alternating current signal by way of an inductive transmitter.

10. The system of claim 7 , comprising:
an alternating current to direct current converter configured to convert the low frequency alternating current signal to the direct current voltage.

11. The system of claim 7 ,
where the diving glove is part of a diving wet suit.

12. A system for determination of a location of a base signal from a signal source, comprising:
a signal source component configured to generate a high frequency alternating current signal from the signal source while underwater, the high frequency alternating current signal is the base signal from which location information is ascertained;
a receiver configured to convert the high frequency alternating current signal to a low frequency alternating current signal;
an alternating current to direct current converter configured to convert the low frequency alternating current signal received by a diving glove to a direct current voltage; and
a microcontroller configured process the direct current voltage to identify a specific voltage value and determine the location of the base signal from according to the specific voltage value in a look-up table.

13. The system of claim 12 ,
where the low frequency alternating current signal is received at the glove by way of an inductive pickup in a palm area of the glove.

14. The system of claim 13 ,
where the low frequency alternating current signal is received from a transmitter held by way of the glove and
where the transmitter transmits the low frequency alternating current signal by way of an inductive transmitter.

15. The system of claim 13 , comprising:
a wetsuit wearable by a diver, where the glove is an integrated part of the wetsuit.

16. The system of claim 15 ,
where the glove is configured to hold at least part of the transmitter and
where before transmission the low frequency alternating current signal is converted from a high frequency alternating current signal that is at a higher frequency than the low frequency alternating current signal to the low frequency alternating current signal.

17. The system of claim 16 ,
where before transmission the high frequency alternating current signal is converted to a direct current signal and then the direct current signal is converted to the low frequency alternating current signal that is received by the inductive pickup.

18. The system of claim 12 , comprising:
a causation component configured to cause display of an information set based, at least in part, on the location in a display of an underwater mask.

19. The method of claim 18 ,
where the information set includes proximity information with regard to the location and a line of sight for a wearer of the mask.

Assignees

• Us Gov Sec Army

Inventors

• Govoni Mark
• Suarez John

Classifications

• H04B5/0031 Primary

  Electricity · mapped topic

• H04B5/266 Primary

  One coil at each side, e.g. with primary and secondary coils · CPC title

• H04W4/02 Primary

  Services making use of location information · CPC title