Abstract: A data communication system comprising a first transmitter set configured to transmit a first output based on a first signal, the first output including one of a training pattern and a first data, the training pattern and the first data including clock information, a second transmitter set configured to transmit a second output based on the first signal, the second output including one of the training pattern and a second data, a first receiver set configured to generate a first received data based on the first output, a second receiver set configured to generate a second received data based on the second output, a clock and data recovery (CDR) circuit configured to extract the clock information based on the first signal and the first received data and provide a second signal indicating whether a frequency in-lock status is reached, a phase control circuit in the second receiver set, the phase control circuit being configured to detect a phase difference between the first received data and the second received

Abstract: A light emitting diode (LED) lamp includes a base and a pivotally turnable lamp holder connected to the base. The lamp holder is internally provided with at least one LED and a heat sink. The heat sink has a plurality of longitudinally spaced rows of upright radiating fins provided thereon with the radiating fins in each row transversely spaced from one another and a long slot having a predetermined length formed between any two adjacent radiating fins in each row. The heat sink is also provided with at least one round mounting hole for the LED to mount therein. The heat sink and the radiating fins and long slots provided thereon help in dissipating heat produced by the LED during the operation thereof to thereby enable prolonged usable life of the LED lamp.

Abstract: A data communication system comprising a first transmitter set configured to transmit a first output based on a first signal, the first output including one of a training pattern and a first data, the training pattern and the first data including clock information, a second transmitter set configured to transmit a second output based on the first signal, the second output including one of the training pattern and a second data, a first receiver set configured to generate a first received data based on the first output, a second receiver set configured to generate a second received data based on the second output, a clock and data recovery (CDR) circuit configured to extract the clock information based on the first signal and the first received data and provide a second signal indicating whether a frequency in-lock status is reached, a phase control circuit in the second receiver set, the phase control circuit being configured to detect a phase difference between the first received data and the second received

Abstract: A light source lens includes a circular lens mount defining a shallow concave recess with a square opening, and a lens engaged with the lens mount to locate above the concave recess to receive light projected thereto via the square opening. The lens includes a first spherical portion and a second spherical portion protruded from a top center of the first spherical portion, and is densely provided at a bottom with a plurality of irregular grooves to form an uneven bottom surface. The first and the second spherical portion diffuses and concentrates, respectively, a light source passed through the lens, and the uneven bottom surface of the lens causes the light passed therethrough to scatter at more different angles, so that any halo is eliminated and a softer lighting effect is created.