SUPPORT BRIDGE FOR FLEXIBLE CIRCUITRY

• US 20070100516A1
• Filed: 12/17/2004
• Published: 05/03/2007
• Est. Priority Date: 12/17/2004
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Olzak, Richard
• Granted Patent: US 7,353,092 B2
• Time in Patent Office: Days
• US Class Current: 701/14
• CPC Class Codes: H05K 5/021 specially adapted for data recorders, e.g. for flight recorders
• CPC Class Codes: H05K 5/0213 Venting apertures; Constructional details thereof
• CPC Class Codes: H05K 9/0066 Constructional details of transient suppressor

Abstract

A flight data recorder having a crash survivable memory unit, a processing unit, a data transmit device and a support device for supporting the data transmit device. The support device includes an electromagnetic interference reduction device that surrounds the data transmit device. The support device is coupled to the crash survivable memory unit or the processing unit for supporting the electromagnetic interference reduction device.

Claims

1. A flight data recorder comprising:

a crash survivable memory unit;

a processing unit located proximate the crash survivable memory unit; and

a data transmit and support device coupled to the processing unit, the device comprising;

a flexprint circuit;

an electromagnetic interference reduction device surrounding a portion of the flexprint circuit; and

a support device coupled to at least one of the crash survivable memory unit or the processing unit for supporting the electromagnetic interference reduction device and the flexprint circuit.

2. The recorder of claim 1, wherein the electromagnetic interference device includes a ferrite core having two sections.

3. The recorder of claim 1, further comprising a cushion positioned between the flexprint circuit and the electromagnetic interference reduction device.

4. The recorder of claim 3, wherein the cushion includes a silicon rubber material.

5. The recorder of claim 1, further comprising an adhesive bonding the electromagnetic interference device to the support device.

6. The recorder of claim 5, wherein the adhesive includes a double-sided tape.

7. The recorder of claim 1, wherein the support device includes plastic.

8. The recorder of claim 7, wherein the plastic includes Delrin.

9. The recorder of claim 7, wherein the plastic includes a vibration damping plastic.

10. A flight data recorder comprising:

a crash survivable memory unit;

a processing unit located proximate the crash survivable memory unit;

a data transmit device coupled to components within the processing unit and the crash survivable memory unit for transmitting data between the processing unit and the crash survivable memory unit; and

a support device for supporting the data transmit device, the device comprising;

an electromagnetic interference reduction device surrounding a portion of the data transmit device; and

the support device coupled to at least one of the crash survivable memory unit or the processing unit for supporting the electromagnetic interference reduction device.

11. The recorder of claim 10, wherein the data transmit device includes a flexprint circuit.

12. The recorder of claim 11, wherein the electromagnetic interference reduction device includes a ferrite core having two sections.

13. The recorder of claim 11, further comprising a cushion positioned between the flexprint circuit and the electromagnetic interference reduction device.

14. The recorder of claim 13, wherein the cushion includes a silicon rubber material.

15. The recorder of claim 11, further comprising an adhesive bonding the electromagnetic interference reduction device to the support device.

16. The recorder of claim 15, wherein the adhesive includes a double-sided tape.

17. The recorder of claim 11, wherein the support device includes plastic.

18. The recorder of claim 17, wherein the plastic includes Delrin.

19. The recorder of claim 17, wherein the plastic includes a vibration damping plastic.

20. A flight data recorder comprising:

a crash survivable memory unit;

a processing unit located proximate the crash survivable memory unit;

a flexprint circuit coupled to components within the processing unit and the crash survivable memory unit for transmitting data between the processing unit and the crash survivable memory unit; and

a support device for supporting the flexprint circuit, the device comprising;

a ferrite core having two sections surrounding a portion of the flexprint circuit; and

the support device coupled to at least one of the crash survivable memory unit or the processing unit for supporting the electromagnetic interference reduction device.