Articulating connector transmission system for signal data and power

• US 5,810,606 A
• Filed: 08/12/1997
• Issued: 09/22/1998
• Est. Priority Date: 06/07/1995
• Status: Expired due to Fees

• Current Assignee: Methode Electronics Incorporated
• Original Assignee: Methode Electronics Incorporated
• Inventors: Ballast, Ronald L., DeFranco, John A., Rupert, Lawrence T.
• Primary Examiner(s): Paumen, Gary F.
• Assistant Examiner(s): PATEL, TULSIDAS C
• Application Number:
  US08/900,962
• Time in Patent Office: 406 Days
• Field of Search: 439/15, 439/21, 439/22, 439/27, 439/488, 439/489, 385/26, 455/41, 455/90
• US Class Current: 439/15
• CPC Class Codes: B60R 16/027 between relatively movable parts of the vehicle, e.g. between steering wheel and column devices for measuring, signalling or controlling tyre pressure or temperature specially adapted for mounting on vehicles B60C23/00
• CPC Class Codes: G02B 6/3604 Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
• CPC Class Codes: H01R 39/64 Devices for uninterrupted current collection

Abstract

An articulating connector assembly having a housing, a hub being carried in rotatable relation to the housing; and means for signal coupling between the housing and the hub. The signal coupling can consist of means such as optical coupling, inductive coupling, radio frequency coupling, capacitive coupling, and pressure wave coupling. In addition, the articulating connector assembly can further include power coupling which can be accomplished by siding contacts, inductively coupled coils, capacitively coupled electrodes, or optical transmitters and receivers on the hub and the housing. Furthermore, a method of efficiently transmitting and receiving signals between the housing and hub is provided. The method consists of (1) obtaining an input signal, by a signal driver, to produce a driven signal output; (2) coupling the driven signal output to produce a coupled signal; and (3) receiving the coupled signal, by a receiver, to produce an output signal. In addition, the method can further include decoding and encoding, respectively, of the output and input signals.

Claims

1. An articulating signal connector comprising:

a) a housing;

b) a hub being carried in rotatable relation to said housing, with power being coupled between said housing and said hub;

c) said housing and said hub defining at least one annular propagation chamber enclosed therebetween;

d) a plurality of discrete, active device signal transmitters disposed on at least one of said housing and said hub circumferentially spaced within said annular propagation chamber;

e) a signal driver associated with said at least one of said housing and said hub on which said transmitters are disposed, said signal driver generating an electrical signal capable of driving said plurality of transmitters; and

f) a plurality of discrete signal receivers disposed on at least the other of said housing and said hub circumferentially spaced within said annular propagation chamber;

g) said transmitters and receivers providing a means for coupling signals between said hub and said housing.

2. The signal connector of claim 1, wherein said transmitters and receivers comprise optical transmitters and receivers.

3. The signal connector of claim 2, further including a light pipe mounted on said hub such that optical signals are focused toward optical receivers, and dispersed evenly away from transmitters mounted on said hub.

4. The signal connector of claim 2, further including a light pipe mounted on said housing such that optical signals are focused toward optical receivers, and dispersed evenly away from transmitters mounted on said housing.

5. The signal connector of claim 1, wherein said transmitters and receivers comprise mutually coupled inductors mounted on both said housing and said hub.

6. The signal connector of claim 1, wherein said transmitters and receivers comprise radio frequency transmitters and receivers.

7. The signal connector of claim 1, wherein said transmitters and receivers comprise pressure wave generators and receivers.

8. The signal connector of claim 1, wherein said signal connector further includes power coupling between said hub and said housing.

9. The signal connector of claim 8, wherein said power coupling is provided by slidable contacts mounted to said hub and said housing.

10. The signal connector of claim 8, wherein said transmitters and receivers comprise mutually coupled inductors.

11. The signal connector of claim 8, wherein said transmitters and receivers comprise optical transmitters and receivers.

12. An apparatus for transmitting signals from a stationary member as part of a steering column in an automobile to a rotatable member attached to a steering wheel, said apparatus comprising:

a) a stationary housing mounted to said stationary member, said housing having a disk-like surface with a first radial depression;

b) a hub attached to said rotatable member, and being carried in rotatable relation to said housing, whereby the rotating motion of said hub corresponds the rotation of said steering wheel, said hub also having a disk-like surface with a second radial depression opposing said first radial depression, said first and second radial depressions forming an enclosed annular signal propagation chamber;

c) a plurality of discrete signal transmitters disposed on at least one of said housing and said hub, circumferentially spaced within said propagation chamber;

d) a plurality of signal receivers disposed on at least the other of said housing and said hub, circumferentially spaced within said propagation chamber;

e) said transmitters, receivers, and propagation chamber forming a non-contact means for coupling signals between said hub and said housing.

13. An articulating signal connector comprising:

a) a housing;

b) a hub being carried in rotatable relation to said housing, with power being coupled between said housing and said hub;

c) said housing and said hub defining at least one annular propagation chamber enclosed therebetween;

d) a plurality of discrete signal transmitters disposed on at least one of said housing and said hub circumferentially spaced within said annular propagation chamber;

e) a plurality of discrete signal receivers disposed on at least the other of said housing and said hub circumferentially spaced within said annular propagation chamber;

f) said transmitters and receivers providing a means for coupling signals between said hub and said housing.

14. The signal connector of claim 13 wherein said power coupling is provided by slidable contacts mounted to said hub and said housing.

15. The signal connector of claim 13 wherein said transmitters and receivers comprise optical transmitters and receivers.

16. The apparatus of claim 15 having a light pipe disposed within said propagation chamber wherein said light pipe evenly disperses light radiated from said optical transmitters, and focuses light signals onto said optical receivers.