초록 ▼

A telephone-stereo “speakerphone”telephone amplifier apparatus is disclosed, the apparatus comprises a standard telephone, a home entertainment variety stereo amplifier, two loudspeakers and microphone mixer (including signal sources) connected by an interface coupler which serves as a junction loca

A telephone-stereo “speakerphone”telephone amplifier apparatus is disclosed, the apparatus comprises a standard telephone, a home entertainment variety stereo amplifier, two loudspeakers and microphone mixer (including signal sources) connected by an interface coupler which serves as a junction location for routing of interconnecting wires and a housing for a mode switch and protective circuitry, transforming the component parts into a full duplex (simultaneous two way) transmit preamplifier and receive monitor audio communication system. To enhance convenience the interface coupler provides a mode switch for selection of one of two desired modes of operation. In one position (telephone interface mode) the switch automatically makes all necessary connections for operation of the components in combination as a telephone-stereo “speakerphone”telephone amplifier. In the other position (stereo mode) the switch breaks contact between the telephone and stereo and returns both to independent normal operation.

대표청구항 ▼

A telephone-stereo amplifier speakerphone apparatus which functions as a full duplex speaker phone, said apparatus comprising: A. a standard telephone having a transmit line and a receive line; B. a home entertainment variety stereo (two channel) amplifier system and two speakers; C. a mixer; D. sig

A telephone-stereo amplifier speakerphone apparatus which functions as a full duplex speaker phone, said apparatus comprising: A. a standard telephone having a transmit line and a receive line; B. a home entertainment variety stereo (two channel) amplifier system and two speakers; C. a mixer; D. signal source means such as a microphone or electric guitar connected to one or more inputs of the mixer; E. an interface coupler connected to an output of the mixer, to both inputs and both outputs of the stereo amplifier system and to both speakers, wherein: 1. the coupler connects one channel of the stereo amplifier system as a transmit channel to amplify signals from the mixer and output amplified signals to the transmit line of the telephone; and 2. the coupler connects the second channel of the stereo amplifier system as a receive channel to amplify signals from the recieve line of the telephone and output amplified signals to the speakers.