Cable detection in a pin constrained connector
US9279844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | May 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/641
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting a cable connected to a first device includes generating a second signal within the first device, and outputting the second signal onto an input-only pin of a cable connector on the first device, wherein the input-only pin is assigned to receive a first signal from a driver on a second device when a cable is connected from the second device to the cable connector, and wherein the second signal has a frequency that is at least four times greater than the frequency of the first signal. The method further comprises determining that a cable is not connected to the cable connector in response to detecting the second signal on a wire coupled to the input-only pin, and determining that the cable is connected to the cable connector in response to detecting a signal other than the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.