Link emission control

• US 9,900,054 B2
• Filed: 11/18/2016
• Issued: 02/20/2018
• Est. Priority Date: 01/30/2012
• Status: Active Grant

• Current Assignee: Molex LLC (KOCH Industries Incorporated)
• Original Assignee: Keyssa, Inc.
• Inventors: McCormack, Gary D., Kyles, Ian A.
• Primary Examiner(s): Le, Thien M
• Assistant Examiner(s): Habib, Asifa
• Application Number:
  US15/355,908
• Publication Number:
  US 20170070263A1
• Time in Patent Office: 459 Days
• CPC Class Codes: H01L 2223/6677 for antenna, e.g. antenna included within housing of semiconductor device antennas per se H01Q
• CPC Class Codes: H01L 2224/16225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/16245 the item being metallic
• CPC Class Codes: H01L 2224/32225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/32245 the item being metallic
• CPC Class Codes: H01L 2224/48227 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/73265 Layer and wire connectors
• CPC Class Codes: H01L 23/66 High-frequency adaptations
• CPC Class Codes: H01L 24/73 Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00012 Relevant to the scope of the group, the symbol of which is combined with the symbol of this group
• CPC Class Codes: H01L 2924/15311 being a ball array, e.g. BGA
• CPC Class Codes: H01L 2924/3011 Impedance
• CPC Class Codes: H01L 2924/3025 Electromagnetic shielding
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04B 15/02 Reducing interference from electric apparatus by means located at or near the interfering apparatus
• CPC Class Codes: H04B 5/00 Near-field transmission systems, e.g. inductive or capacitive transmission systems
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

Establishing a communication link may include transmitting by a first device an unmodulated first electromagnetic EHF signal and receiving by a second device the first electromagnetic EHF signal. The second device may determine whether the received first electromagnetic EHF signal indicates that a first shield portion and a second shield portion are in alignment. The transmission of a modulated second electromagnetic EHF signal may be enabled when the received first electromagnetic EHF signal indicates that both the shield portions are in alignment and may be disabled when the received first electromagnetic EHF signal indicates that the first and second shield portions are not in alignment.

Claims

1. A method for managing a communication link, comprising:

transmitting by near field coupling from a first device, a first electromagnetic EHF signal that is low-level modulated with a predefined code required by a corresponding second device;

receiving by near field coupling to the first device a second electromagnetic EHF signal transmitted by the second device;

determining by the first device whether the received second electromagnetic EHF signal is modulated with a high level of modulation; and

in response to a determination that the received second electromagnetic EHF signal is modulated with a high level of modulation, transmitting the first electromagnetic EHF signal with a high level of modulation, the first electromagnetic EHF signal that is low-level modulated having a narrower frequency band of emissions than the first electromagnetic EHF signal with the high level of modulation.

2. The method of claim 1, wherein the method further comprises, after transmitting the first electromagnetic EHF signal with a high level of modulation:

determining that the second electromagnetic EHF signal is no longer being received; and

in response to the determination that the second electromagnetic EHF signal is no longer being received, terminating further transmission of the first electromagnetic EHF signal.

3. The method of claim 2, wherein the method further comprises, in response to the determination that the second electromagnetic EHF signal is no longer being received, transmitting the first electromagnetic EHF signal that is low-level modulated.

7. The method of claim 1, wherein determining whether the received second electromagnetic EHF signal is modulated with the high level of modulation includes determining whether the second electromagnetic EHF signal is modulated with at least one of a control protocol or a handshake protocol.

9. The method of claim 1, wherein the first electromagnetic EHF signal with the high level modulation is modulated using a higher frequency signal than the first electromagnetic EHF signal that is low-level modulated.

4. A first device for establishing a communication link with a second device, the first device comprising:

a first EHF communication unit configured to transmit to the second device a first electromagnetic EHF signal that is low-level modulated with a predefined code required by a corresponding second device;

a second EHF communication unit configured to receive a second electromagnetic EHF signal transmitted by the second device; and

a signal controller configured to determine whether the received second electromagnetic EHF signal is modulated with a high level of modulation; and

if the received second electromagnetic EHF signal is modulated with a high level of modulation, to disable transmission of the first electromagnetic EHF signal that is low-level modulated by the first communication unit, and to enable transmission of the first electromagnetic EHF signal with a high level of modulation, the first electromagnetic EHF signal that is low-level modulated having a narrower frequency band of emissions than the first electromagnetic EHF signal with the high level of modulation.

5. The first device of claim 4, wherein the signal controller is further configured, after enabling the transmission of the first electromagnetic EHF signal with the high level of modulation, to determine that the second electromagnetic EHF signal is no longer being received, and to disable the further transmission of the first electromagnetic EHF signal modulated with the high-level of modulation.

6. The first device of claim 5, wherein the signal controller is further configured, after disabling the transmission of the first electromagnetic EHF signal with the high level of modulation, to enable the transmission of the first electromagnetic EHF signal with the low-level of modulation.

8. The first device of claim 4, wherein determining whether the received second electromagnetic EHF signal is modulated with the high level of modulation includes determining whether the second electromagnetic EHF signal is modulated with at least one of a control protocol or a handshake protocol.

10. The first device of claim 4, wherein the first electromagnetic EHF signal with the high level modulation is modulated using a higher frequency signal than the first electromagnetic EHF signal that is low-level modulated.