ELECTRONIC INTERCOM SYSTEM WITH TWO-CONDUCTOR COMMUNICATION BUS WITH TIME DIVISION MULTIPLEXING (Machine-translation by Google Translate, not legally binding)
Electronic intercom system (10) configured to establish at least one communication between an entrance panel (20) and at least one home terminal (30); where the electronic intercom system (10) is characterized in that it comprises: at least one street panel (20), a plurality of home terminals (30),...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | Electronic intercom system (10) configured to establish at least one communication between an entrance panel (20) and at least one home terminal (30); where the electronic intercom system (10) is characterized in that it comprises: at least one street panel (20), a plurality of home terminals (30), a communication bus (11) configured at least to establish a communication of audio between the entrance panel (20) and one or more housing terminals (30), where the communication bus (11) comprises two conductors, where the communication bus (11) is not polarized, and where The entrance panel (20) and the home terminals (30) are configured to transmit and receive signals through the communication bus (11) with time division multiplexing, TDM; wherein the street panel (20) and at least one home terminal (30) each comprise: a modem unit (12), and a signal adaptation unit (13) operatively connected to the modem unit (12); wherein the modem unit (12) comprises: a set of modulator (21) and demodulator (22) of signal modulated by pulse position, PPM, and a set of modulator (23) and demodulator (24) of signal modulated by frequency shift, FSK; and wherein the signal adaptation unit (13) comprises: a polarity detector (14), and a polarity inverter (15), configured to selectively invert the polarity of the signal of the communication bus (11). (Machine-translation by Google Translate, not legally binding)
Sistema (10) de portero electrónico configurado para establecer al menos una comunicación entre una placa de calle (20) y al menos un terminal de vivienda (30); en donde el sistema (10) de portero electrónico está caracterizado porque comprende: al menos una placa de calle (20), una pluralidad de terminales de vivienda (30), un bus de comunicación (11) configurado al menos para establecer una comunicación de audio entre la placa de calle (20) y uno o más terminales de 10 vivienda (30), en donde el bus de comunicación (11) comprende dos conductores, en donde el bus de comunicación (11) no está polarizado, y en donde la placa de calle (20) y los terminales de vivienda (30) están configurados para transmitir y recibir señales a través del bus de comunicación (11) con una multiplexación por división en el tiempo, TDM; en donde la placa de calle (20) y al menos un terminal de vivienda (30) comprenden, cada uno: una unidad de módem (12), y una unidad de adaptación de señal (13) operativamente conectada a la unidad de módem (12); en donde la unidad de módem (12) comprende: un |
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