Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.

Abstract: The present invention provides a walker including a fastening assembly. The walker has a connection part including two brace units, the fastening assembly assembled with the two brace units, and two side frames mounted to the connection part. The fastening assembly has a first baffle having a pivot end, a second baffle having a clasping portion, a curved wall having at least one plug and connecting the first baffle and the second baffle, and a clasping component pivotally mounted to the pivot end and selectively engaged with the clasping portion. The at least one plug of the fastening assembly is inserted into and fixed by the two brace units; and the clasping component is engaged with the clasping portion for further enhancing stability of the connection part and the fastening assembly to prevent the fastening assembly from falling off.

Abstract: The present invention provides a walker including a fastening assembly. The walker has a connection part including two brace units, the fastening assembly assembled with the two brace units, and two side frames mounted to the connection part. The fastening assembly has a first baffle having a pivot end, a second baffle having a clasping portion, a curved wall having at least one plug and connecting the first baffle and the second baffle, and a clasping component pivotally mounted to the pivot end and selectively engaged with the clasping portion. The at least one plug of the fastening assembly is inserted into and fixed by the two brace units; and the clasping component is engaged with the clasping portion for further enhancing stability of the connection part and the fastening assembly to prevent the fastening assembly from falling off.

Abstract: A wheel frame assembly capable of being folded and expansion rapidly for carrying out and storage easily and conveniently. A wheel frame assembly comprises a retainer frame having two parallel retaining rods; at least two rotary units; each rotary unit being formed by assembling a sleeve with a wheel; an active frame have two parallel active rods; each active rod being penetrated by a guide shaft; a telescopic rod having an inner rod and an outer rod engaged to inner rod; the telescopic rod being connected to a latch for controlling the telescopic movement of the inner rod; the actuation of the latch being performed by a handle. Another, a pin assembly can be used to replaced the telescopic rod. The pin assembly includes a rod unit engaged to the rotary unit and a wire for controlling the rod unit to separate from the rotary unit.