Lance E. Hamilton - Lawrenceburg KY, US Andrew I. McGuire - Lexington KY, US Troy L. Allen - Georgetown KY, US
Assignee:
Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY
International Classification:
H04R 29/00
US Classification:
381 59, 381 58, 381 60, 381 67
Abstract:
A device for testing the operability of an audio speaker includes a housing, a unidirectional microphone and a display. The underside of the housing comprises a recessed area. The unidirectional microphone is positioned and oriented in the recessed area such that the unidirectional microphone is recessed from the underside of the housing. The display is positioned on the housing such that the display is visible when the testing device is placed proximate an audio speaker with the underside of the housing facing the audio speaker. The display may include at least one visual indicator operatively coupled to the unidirectional microphone such that, when the unidirectional microphone is receiving an acoustic signal, the at least one visual indicator is illuminated.
Devices For Testing The Operability Of Electronic Circuitry
Lance E. Hamilton - Lawrenceburg KY, US Andrew I. McGuire - Lexington KY, US
Assignee:
Toyota Motor Engineering & Manufacturing North America, Inc. - Erlanger KY
International Classification:
G08B 21/00
US Classification:
340656
Abstract:
A device for testing the operability of an AC power outlet, a DC power outlet and A/V input jacks may include an AC test circuit, a DC test circuit, an A/V test circuit, a logic circuit, and a system OK indicator. At least the AC test circuit and the DC test circuit may be operatively connected to the logic circuit such that when at least the AC plug and the DC plug are inserted in a functioning power outlets, the system OK indicator is activated.