Signal transmission device and signal transmission method
AssigneeKabushiki Kaisha Toshiba
InventorTakashi Doi
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Abstract
According to one embodiment, a signal transmission device AC-coupled with a reception device through a digital transmission line, includes transmitting circuitry configured to transmit a differential signal to the digital transmission line, the differential signal including a first signal and a second signal that are based on an encoded bit serial input signal, wherein absolute values of amplitudes of the first and second signals are 857.14 (mV) or larger.
Claims5
A high-definition media interface (HDMI) signal transmission device alternating-current (AC)-coupled with an HDMI reception device through a digital transmission line conforming to HDMI standard, comprising:
- transmitting circuitry configured to
- generate a first signal of first polarity and a second signal of second polarity based on a bit-serial input signal containing a transition-minimized differential signal (TMDS)-encoded multi-bit code by amplifying each bit according to logic of the bit, and
- transmit a differential signal including the first signal and the second signal over the digital transmission line,
- wherein
- the bit-serial input signal includes a first of the TMDS-encoded multi-bit code has a ratio of 4:6 between bits of logic 1 and bits of logic 0, and a second of the TMDS-encoded multi-bit code has a ratio of 6:4 between bits of logic 1 and bits of logic 0,
- an absolute value of an amplitude of the first signal and the second signal is 857.14 (mV) or larger,
- an amplitude of the differential signal is 686 (mV) or larger, and
- a wavelength of a waveform of each of the first signal and the second signal is 0.85 Tbit (Time duration of a single bit carried across the TMDS data channels) or longer.
A high-definition media interface (HDMI) signal transmission method performed by a signal transmission device alternating-current (AC)-coupled with an HDMI reception device through a digital transmission line conforming to HDMI standard, comprising:
- generating a first signal of first polarity and a second signal of second polarity based on a bit-serial input signal containing a transition-minimized differential signal (TMDS)-encoded multi-bit code by amplifying each bit according to logic of the bit;
- transmitting a differential signal including the first signal and the second signal over the digital transmission line, wherein the bit-serial input signal includes a first of the TMDS-encoded multi-bit code has a ratio of 4:6 between bits of logic 1 and bits of logic 0, and a second of the TMDS-encoded multi-bit code has a ratio of 6:4 between bits of logic 1 and bits of logic 0,
- wherein
- an absolute value of an amplitude of the first signal and the second signal is 857.14 (mV) or larger, and
- an amplitude of the differential signal is 686 (mV) or larger, and
- a wavelength of a waveform of each of the first signal and the second signal is 0.85 Tbit (Time duration of a single bit carried across the TMDS data channels) or longer.
Dependencies are inferred from the claim text.