| 摘要 |
An apparatus (100) for amplifying signals which includes a main amplifier engine (102) having an input stage (122) and an output stage (120) connected thereto and a current generator (106) connected to said main amplifier engine (102). Specifically, the current generator (106) is connected to the output stage (120) of the main amplifier engine (102) and provides a current (124) to the input stage (122) via the output stage (120). This backtracking current (124) pre-biases the amplifying device (100) so that it does not rely on negative feedback for signal correction purposes. The apparatus (100) forms the basic building block for a high level holographic cloning amplifier (600). Input signals are duplicated without distortion and amplified so that they can be projected by ordinary audio equipment to produce a holographic wavefront giving the illusion of signal sources that "hang in the air" instead of being sensed as emanating solely from a speaker.
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