System and method for managing voltage supplied to transmitter enclosed within fully metallic chassis incorporating proximity sensing element

• US 10,009,056 B1
• Filed: 04/27/2017
• Issued: 06/26/2018
• Est. Priority Date: 04/27/2017
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Shaw, Timothy, Chang, Ching Wei, Menendez, Mark
• Primary Examiner(s): Gonzales, April G
• Application Number:
  US15/499,771
• Time in Patent Office: 425 Days
• Field of Search: 455 73
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
• CPC Class Codes: H04M 1/73 Battery saving arrangements
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An information handling system operating a proximity based transmitting antenna power management system comprising a processor executing machine readable executable code instructions of the proximity based transmitting antenna power management system, an integrated circuit operatively connected to a first embedded proximity sensing element, a first transmitting antenna, and the processor, the first transmitting antenna mounted upon a metal chassis enclosing the processor, and the integrated circuit, the first embedded proximity sensing element having the same material composition as the metal chassis co-located with the first transmitting antenna and lying flush with the external surface of the metal chassis in a corner of the external surface of the metal chassis, and an insulating element disposed between the metal chassis and the first embedded proximity sensing element via injection molding.

Claims

1. An information handling system operating a proximity based transmitting antenna power management system comprising:

a processor executing machine readable executable code instructions of the proximity based transmitting antenna power management system;

an integrated circuit operatively connected to a first embedded proximity sensing strip, a first transmitting antenna, and the processor;

the first transmitting antenna mounted upon a metal chassis enclosing the processor, and the integrated circuit;

the first embedded proximity sensing strip having the same material composition as the metal chassis co-located with the first transmitting antenna and lying flush with the external surface of the metal chassis in a corner of the external surface of the metal chassis; and

an insulating element disposed between the metal chassis and the first embedded proximity sensing strip via injection molding.

2. The information handling system operating a proximity based transmitting antenna power management system of claim 1, wherein the first embedded proximity sensing strip is comprised of a first capacitive strip and a second capacitive strip, one surface of the first capacitive strip lying flush with a top exterior surface of the metal chassis, and one surface of the second capacitive strip lying flush with a side exterior surface of the metal chassis.

3. The information handling system operating a proximity based transmitting antenna power management system of claim 1, further comprising:

the insulating element being disposed within a pitted insulating element cavity formed by a milling of a machined cavity between the chassis and the first embedded proximity sensing strip, and by application of an acidic deposition spray along the walls of the chassis and first embedded proximity sensing strip exposed to the machined cavity; and

the first embedded proximity sensing strip being operatively connected to the integrated circuit via an electrical conductor passed through an integrated circuit channel disposed through a portion of the insulating element located between the integrated circuit and the first embedded proximity sensing strip.

4. The information handling system operating a proximity based transmitting antenna power management system of claim 1, wherein the first transmitting antenna comprises a transceiving antenna.

5. The information handling system operating a proximity based transmitting antenna power management system of claim 1, further comprising:

the processor executing machine readable code instructions of the proximity based transmitting antenna power management system to instruct the integrated circuit to supply a constant voltage to the first embedded proximity sensing strip, to detect a change in capacitance of the first embedded proximity sensing strip, and to instruct the integrated circuit to decrease the voltage supplied to the first transmitting antenna in response to the change in capacitance.

6. The information handling system operating a proximity based transmitting antenna power management system of claim 1, wherein the change in capacitance of the first embedded proximity sensing strip comprises a decrease in capacitance across the first embedded proximity sensing strip.

7. The information handling system operating a proximity based transmitting antenna power management system of claim 1, further comprising:

the integrated circuit operatively connected to a second embedded proximity sensing strip, and a second transmitting antenna;

the second transmitting antenna mounted upon the metal chassis; and

the second embedded proximity sensing strip co-located with the second transmitting antenna.

8. A manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip comprising:

milling a first machined cavity within a metallic chassis having a first mounted transmitting antenna to form a first embedded proximity sensing strip lying flush with an exterior surface of the metallic chassis and having the same material composition as the metallic chassis;

pitting the walls of the metallic chassis and the first embedded proximity sensing strip exposed to the first machined cavity via acidic deposition spray;

injecting a first insulating element within the pitted walls of the first machined cavity;

milling a first channel through a portion of the first insulating element located beneath the first embedded proximity sensing strip; and

operatively connecting a first integrated circuit to the first proximity sensor via a first electrical conductor passed through the first channel.

9. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, wherein the first embedded proximity sensing strip is comprised of a first capacitive strip lying flush with a top exterior surface of the metal chassis, and a second capacitive strip lying flush with a side exterior surface of the metal chassis.

10. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, wherein the first transmitting antenna comprises a transceiving antenna.

11. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, further comprising:

operatively connecting the integrated circuit to a processor executing machine readable code instructions of a proximity based transmitting antenna power management system to instruct the integrated circuit to supply a constant voltage to the first embedded proximity sensing strip, to detect a change in capacitance of the first embedded proximity sensing strip, and, upon detecting the change in capacitance of the first embedded proximity sensing strip, to decrease the voltage supplied to the first mounted transmitting antenna.

12. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, wherein the change in capacitance of the first embedded proximity sensing strip comprises a decrease in capacitance across the first embedded proximity sensing strip.

13. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, wherein the insulating element comprises a thermoplastic material.

14. The manufacturing process for fabricating a metallic chassis having an embedded proximity sensing strip of claim 8, further comprising:

milling a second machined cavity within the metallic chassis having a second mounted transmitting antenna to form a second embedded proximity sensing strip lying flush with an exterior surface of the metallic chassis and having the same material composition as the metallic chassis;

pitting the walls of the metallic chassis and the second embedded proximity sensing strip exposed to the second machined cavity via acidic deposition spray;

injecting a second insulating element within the pitted walls of the second machined cavity;

milling a second channel through a portion of the second insulating element located beneath the second embedded proximity sensing strip; and

operatively connecting a second integrated circuit to the second embedded proximity sensing strip via a second electrical conductor passed through the second channel.

15. An information handling system operating a proximity based transmitting antenna power management system comprising:

a processor executing machine readable executable code instructions of the proximity based transmitting antenna power management system;

a metal chassis enclosing the processor and the integrated circuit operating as a first transmitting antenna;

an integrated circuit operatively connected to the metal chassis, a first embedded proximity sensing strip, and the processor;

the first embedded proximity sensing strip having the same material composition as the metal chassis and lying flush with the external surface of the metal chassis; and

an insulating element disposed between the metal chassis and the first embedded proximity sensing strip via injection molding.

16. The information handling system operating a proximity based transmitting antenna power management system of claim 15, wherein the first embedded proximity sensing strip is comprised of a first capacitive strip and a second capacitive strip, one surface of the first capacitive strip lying flush with a top exterior surface of the metal chassis, and one surface of the second capacitive strip lying flush with a side exterior surface of the metal chassis.

17. The information handling system operating a proximity based transmitting antenna power management system of claim 15, further comprising:

the insulating element being disposed within a pitted insulating element cavity formed by a milling of a machined cavity between the chassis and the first embedded proximity sensing strip, and by application of an acidic deposition spray along the walls of the chassis and first embedded proximity sensing strip exposed to the machined cavity; and

the first embedded proximity sensing strip being operatively connected to the integrated circuit via an electrical conductor passed through an integrated circuit channel disposed through a portion of the insulating element located between the integrated circuit and the first embedded proximity sensing strip.

18. The information handling system operating a proximity based transmitting antenna power management system of claim 15, wherein the first transmitting antenna comprises a transceiving antenna.

19. The information handling system operating a proximity based transmitting antenna power management system of claim 15, further comprising:

the processor executing machine readable code instructions of the proximity based transmitting antenna power management system to instruct the integrated circuit to supply a constant voltage to the first embedded proximity sensing strip, to detect a change in capacitance of the first embedded proximity sensing strip, and to instruct the integrated circuit to decrease the voltage supplied to the first transmitting antenna.

20. The information handling system operating a proximity based transmitting antenna power management system of claim 15, wherein the change in capacitance of the first embedded proximity sensing strip comprises a decrease in capacitance across the first embedded proximity sensing strip.