Cable detection in a pin constrained connector
US9222964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | May 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/641
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cable detection apparatus comprises a cable connector, a signal generator, and a detection module. The cable connector is located on a first device and has an input-only pin that is coupled to a receiver and assigned for receiving a first signal from a driver on a second device. The signal generator is located within the first device and has an output driving a second signal onto the input-only pin, wherein the second signal has a frequency that is at least four times greater than the frequency of the first signal. The detection module has a detection input coupled to the input-only pin, wherein the detection module produces a negative cable detection output in response to detecting the second signal, and wherein the detection module produces a positive cable detection output in response to detecting a signal other than the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.