Method and apparatus for diagnosing amp to speaker connections
US5450624A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Jan 7, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the connection status of a communication system speaker connection to the amplifier includes digital signal processing (DSP) circuitry contained in the system receiving a clip detect feedback loop from the amplifier in response to a tone signal delivered to the amplifier from the DSP microprocessor. Preferably, the diagnosis is initiated by actuation of a predetermined plurality of controllers on a face control unit, each of which is otherwise actuated individually to control portions of the communication system. Preferably, a tone signal generated for diagnosis is generally inaudible to the human ear but the front control unit includes a display screen for illustrating the condition of the speaker-to-amplifier connection after the diagnostic function has been completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.