System and method of communication for electronic apparatuses

Communication method for electronic apparatuses, the electronic apparatus being provided with functional modules (1, 2, 3, 4) electrically associated to each other by means of a single power bus (9, 10), the power bus (9, 10) being electrically associated to an electric energy power supply (8), the electric energy power supply (8) being arranged to provide alternating voltage to the functional modules (1, 2, 3, 4) at a predetermined frequency, the method comprising the following steps:

• i) associating the functional modules (1, 2, 3, 4) operatively to each other by means of a single communication bus (11, 10), the power bus (9, 10) and the communication bus (11, 10) sharing a reference conductor (10);
• ii) providing a communication signal (13) to the communication bus (11, 10) capable of permitting operative interaction between the functional modules (1, 2, 3, 4);
• and
• iii) providing a plurality of information pulses (15), each information pulse (15) corresponding to at least one bit of the communication signal (13);
• the method further comprising the following steps:
• iv) providing a plurality of sets of high frequency pulses (14) to the communication bus (11, 10) which repeat at a predetermined repetition frequency, the repetition frequency being substantially greater than the frequency of the electric energy power supply voltage, the plurality of sets of high frequency pulses (14) having a variation in voltage between maximum and minimum levels, one or more variations forming a voltage modulation of the high frequency pulses (14), the voltage modulation being arranged to form information pulses (15), the information pulses (15) corresponding to at least one bit of a communication protocol, the at least one bit of a communication protocol forming a voltage envelope;
• and
• v) filtering the passage of frequency components of the voltage envelope of the communication signal (13) which are lower or equal to the electric energy power supply voltage frequency.

Communication system for electronic apparatuses, the system comprising:

• functional modules (1, 2, 3, 4), at least one of said functional modules (1, 2, 3, 4) comprising a processing unit (5), and at least one of said functional modules (1, 2, 3, 4) comprising a controllable device (6, 7) controllable by the processing unit (5);
• an electric energy power supply (8) arranged to provide alternating voltage to the functional modules (1, 2, 3, 4);
• a power bus (9, 10) arranged to electrically associate the electric energy power supply (8) to the functional modules (1, 2, 3, 4) at a predetermined voltage frequency;
• a communication bus (11, 10) arranged to operatively associate the functional modules (1, 2, 3, 4) in parallel to each other;
• and
• a reference conductor (10) shared by the power bus (9, 10) and by the communication bus (11, 10);
• the processing unit (5) being arranged to modulate at least one communication signal (13) to be transmitted through the communication bus (11, 10), such that an operative interaction between functional modules (1, 2, 3, 4) is established,
• the at least one communication signal (13) being a voltage modulation of a plurality of high frequency pulses (14) with the electric energy power supply voltage signal, the plurality of high frequency pulses (14) having a repetition frequency, the repetition frequency of the high frequency pulses (14) being substantially greater than the predetermined voltage frequency of the electric energy power supply voltage signal, the at least one communication signal (13) comprising information pulses (15) corresponding to at least one bit of a communication protocol,
• the at least one communication signal (13) being filtered by high pass frequency filters (12) disposed between the electric energy power supply and the functional modules (1, 2, 3, 4) such that:
• the electric energy power supply voltage signal of the at least one communication signal (13) is removed;
• and
• the high frequency pulses (14) of the at least one communication signal (13) are maintained.

Communication method for electronic apparatuses, the electronic apparatus being provided with functional modules (1, 2, 3, 4) electrically associated to each other by means of a single power bus (9, 10), the power bus (9, 10) being electrically associated to an electric energy power supply (8), the electric energy power supply (8) being arranged to provide alternating voltage to the functional modules (1, 2, 3, 4) at a predetermined voltage frequency, the method comprising the following steps:

• i) associating the functional modules (1, 2, 3, 4) operatively to each other by means of a single communication bus (11, 10), the power bus (9, 10) and the communication bus (11, 10) sharing a reference conductor (10);
• ii) providing at least one communication signal (13) to be transmitted through the communication bus (11, 10), such that an operative interaction between functional modules (1, 2, 3, 4) is established, the at least one communication signal (13) being a voltage modulation of a plurality of high frequency pulses (14) with the electric energy power supply voltage signal, the plurality of high frequency pulses (14) having a repetition frequency, the repetition frequency of the high frequency pulses (14) being substantially greater than the predetermined voltage frequency of the electric energy power supply voltage signal;
• iii) providing a plurality of information pulses (15), each information pulse (15) corresponding to at least one bit of the communication signal (13);
• and
• iv) filtering the at least one communication signal (13) by means of high pass frequency filters (12) disposed between the electric energy power supply and the functional modules (1, 2, 3, 4) such that:
• the electric energy power supply voltage signal of the at least one communication signal (13) is removed;
• and
• the high frequency pulses (14) of the at least one communication signal (13) are maintained.