Abstract: A circuit for filtering narrow pulse and compensating wide pulse, including a signal shaping circuit, a filter circuit, and a pulse width compensating circuit. The signal shaping circuit processes an input signal and transmits the input signal to the filter circuit. The filter circuit filters off narrow pulses of the input signal. The pulse width compensating circuit compensates the wide pulses of the input signal and outputs an output signal.

Abstract: A method for transcribing a multimedia broadcasting program is provided by the disclosure. The method comprises the following steps: during playing of the multimedia broadcasting program, when a transcribing command is received, program contents cached in a preset caching area is transferred into a storage device of a mobile terminal, wherein the program contents cached in the caching area have been played when the transcribing command is received (101); and subsequent program contents that continue to be played in the multimedia broadcasting program are transcribed into the storage device. And an apparatus for transcribing a multimedia broadcasting program is further provided by the disclosure. The problem in the prior art may be solved by applying the disclosure, and the problem is that, during a transcription process, a user does not make transcription operation until he/she has enjoyed a segment of the program, and the multimedia program contents finally generated will be incomplete.