Electrical device with electrical interface that is compatible with integrated optical cable receptacle

• US 8,769,171 B2
• Filed: 04/04/2008
• Issued: 07/01/2014
• Est. Priority Date: 04/06/2007
• Status: Active Grant

• Current Assignee: II-VI Delaware, Inc. (Coherent Corp.)
• Original Assignee: Finisar Corporation (II-VI Incorporated)
• Inventors: Aronson, Lewis B., Douma, Darin James
• Primary Examiner(s): Alrobaye, Idriss N
• Assistant Examiner(s): TAYLOR, BROOKE JAZMOND
• Application Number:
  US12/098,343
• Publication Number:
  US 20100325324A1
• Time in Patent Office: 2,279 Days
• Field of Search: 710/63
• US Class Current: 710/63
• CPC Class Codes: G02B 6/4246 Bidirectionally operating package structures
• CPC Class Codes: G02B 6/4284 of optical modules with disconnectable electrical connectors latching arms for electrical connectors H01R13/627
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/7172 Conduits for light transmission
• CPC Class Codes: H01R 31/065 with built-in electric apparatus

Abstract

A device having a plug that is configured to mechanically interface with a receptacle external to the device. The plug also has an electrical interface that electrically interfaces with the receptacle even though the external receptacle has a mechanical and electrical interface shaped to interface with an integrated cable that includes an optical communication mechanism for communicating over most of the length of the integrated cable, and even though the device itself has a full electrical communication channel communicatively coupling a data communication endpoint of the device with the electrical interface of the plug.

Claims

1. A device comprising:

a plug configured to interface with an active cable receptacle that is separate from the device, the plug including a mechanical interface and an electrical interface, the mechanical interface configured to be releasably received within the active cable receptacle, the mechanical interface being substantially similar to a mechanical interface of an active cable that is also configured to be releasably received within the active cable receptacle, the active cable configured to convert a received electrical signal to an optical signal and communicate the optical signal over most of the length of the active cable, the electrical interface including at least five electrical contacts each being configured to mechanically and electrically interface with at least one of twelve electrical contacts of the active cable receptacle, the twelve electrical contacts of the active cable receptacle being divided into a first group of four electrical contacts, a second group of four electrical contacts, and a third group of four electrical contacts, the first group being configured for transmitting signals and the second group being configured for receiving signals;

a data communication endpoint; and

an internal electrical communication channel communicatively coupling the data communication endpoint with the electrical interface of the plug, the electrical communication channel configured to communicate data between the data communication endpoint and the electrical interface exclusively via electrical communication.

2. The device according to claim 1, wherein the device is a memory device, wherein the data communication endpoint comprises memory.

3. The device according to claim 2, wherein the device is configured such that data may be written to and read from the memory at least when the plug is mechanically and electrically interfacing with the active cable receptacle.

4. The device according to claim 2, wherein the device is a memory stick.

5. The device according to claim 2, wherein the device is a music player.

6. The device according to claim 2, wherein the device is a video player.

7. The device according to claim 2, wherein the device is an external hard drive.

8. The device according to claim 2, wherein the device is an external optical disk drive.

9. The device according to claim 1, wherein the data communication endpoint comprises a transmitter for wirelessly transmitting data received by the data communication endpoint from the electrical interface of the plug.

10. The device according to claim 1, wherein the data communication endpoint comprises a receiver for wirelessly receiving data to be communicated to the electrical interface of the plug.

11. The device according to claim 1, further comprising a rigid casing that encases the data communication endpoint and at least a portion of the electrical communication channel and the plug, the rigid casing not configured to interface with an external cable and the data communication endpoint not configured to communicate with an external cable.

12. The device according to claim 1, wherein the mechanical interface of the plug includes a latching mechanism for latching with the active cable receptacle when the mechanical interface of the plug is mechanically interfacing with the active cable receptacle.

13. The device according to claim 12, wherein the latching mechanism is configured to mechanically engage with the active cable receptacle to lock the device into place within the active cable receptacle until the next time the latching mechanism is disengaged, and the latching mechanism requires less force to engage the plug with the active cable receptacle than is required to disengage the plug from the active cable receptacle.

14. The device according to claim 13, wherein the latching mechanism includes two locking prongs configured to be received by and mechanically engage with two locking indentures of the active cable receptacle.

15. The device according to claim 1, wherein the at least five electrical contacts of the electrical interface are configured to electrically and mechanically interface with the twelve electrical contacts of the active cable receptacle along a top side of the plug.

16. The device according to claim 1, wherein the electrical interface is configured to make electrical contact with a plurality fingers of the active cable receptacle that serve as EMI barriers between the active cable receptacle and an ambient environment.

20. The device according to claim 1, wherein:

the mechanical interface of the plug includes a latching mechanism for latching with the active cable receptacle when the mechanical interface of the plug is mechanically interfacing with the active cable receptacle, the latching mechanism including two locking prongs configured to be received by and mechanically engage with two locking indentures of the active cable receptacle to lock the device into place within the active cable receptacle until the next time the latching mechanism is disengaged, and the latching mechanism requiring less force to engage the plug with the active cable receptacle than is required to disengage the plug from the active cable receptacle;

the at least five electrical contacts of the electrical interface includes twelve electrical contacts where each is configured to electrically and mechanically interface with one of the twelve electrical contacts of the active cable receptacle along a top side of the plug;

the first group of four electrical contacts of the twelve electrical contacts of the active cable receptacle includes two electrical contacts configured to transmit a differential signal and two ground contacts;

the second group of four electrical contacts of the twelve electrical contacts of the active cable receptacle includes two electrical contacts configured to receive a differential signal and two ground contacts;

the third group of four electrical contacts of the twelve electrical contacts of the active cable receptacle includes at least one electrical contact configured to provide power; and

the electrical interface is configured to make electrical contact with a plurality fingers of the active cable receptacle that serve as EMI barriers between the active cable receptacle and an ambient environment.

17. A device comprising:

a plug configured to interface with an active cable receptacle that is separate from the device, the plug including an electrical interface and a mechanical interface, the electrical interface including at least five electrical contacts each being configured to mechanically and electrically interface with at least one of twelve electrical contacts of the active cable receptacle, the twelve electrical contacts of the active cable receptacle being divided into a first group of four electrical contacts, a second group of four electrical contacts, and a third group of four electrical contacts, the first group being configured for transmitting signals and the second group being configured for receiving signals, the mechanical interface configured to be releasably received within the active cable receptacle, the mechanical interface being substantially similar to a mechanical interface of an active cable that is also configured to be releasably received within the active cable receptacle, the active cable configured to convert a received electrical signal to an optical signal and communicate the optical signal over most of the length of the active cable, the mechanical interface including a latching mechanism for latching with the active cable receptacle when the mechanical interface of the plug is releasably received within the active cable receptacle, the latching mechanism being configured to mechanically engage with the active cable receptacle to lock the mechanical interface into place within the active cable receptacle until the next time the latching mechanism is disengaged, the latching mechanism requiring less force to engage the mechanical interface with the active cable receptacle than is required to disengage the mechanical interface from the active cable receptacle;

a data communication endpoint not configured to communicate with an external cable;

an internal electrical communication channel communicatively coupling the data communication endpoint with the electrical interface of the plug, the electrical communication channel configured to communicate data between the data communication endpoint and the electrical interface exclusively via electrical communication; and

a rigid casing that encases the data communication endpoint and at least a portion of the electrical communication channel and the plug, the rigid casing not configured to interface with an external cable.

18. The device according to claim 17, wherein the latching mechanism includes two locking prongs configured to be received by and mechanically engage with two locking indentures of the active cable receptacle.

19. A memory device comprising:

a plug configured to interface with an active cable receptacle that is separate from the device, the plug including an electrical interface and a mechanical interface, the electrical interface including at least five electrical contacts each being configured to mechanically and electrically interface with at least one of twelve electrical contacts of the active cable receptacle along a top side of the plug, the twelve electrical contacts of the active cable receptacle being divided into a first group of four electrical contacts, a second group of four electrical contacts, and a third group of four electrical contacts, the first group being configured for transmitting signals and the second group being configured for receiving signals, the electrical interface further configured to make electrical contact with a plurality fingers of the active cable receptacle that serve as electromagnetic interference (EMI) barriers between the active cable receptacle and an ambient environment, the mechanical interface configured to be releasably received within the active cable receptacle, the mechanical interface being substantially similar to a mechanical interface of an active cable that is also configured to be releasably received within the active cable receptacle, the active cable configured to convert a received electrical signal to an optical signal and communicate the optical signal over most of the length of the active cable;

a memory not configured to communicate with an external cable;

an internal electrical communication channel communicatively coupling the memory with the electrical interface of the plug, the electrical communication channel configured to communicate data between the memory and the electrical interface exclusively via electrical communication; and

a rigid casing that encases the memory and at least a portion of the electrical communication channel and the plug, the rigid casing not configured to interface with an external cable.