Simplified USB sharer having a busyness detection circuit
AssigneeAction Star Enterprise Co., Ltd.
InventorsCherng-Ying Ying, Ta-Lung Yu
Life of this patent
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Abstract
A computer accessory device—USB sharer includes a multiplexer, which is connected to a computer host, a human interface device (HID) chip, which is connected to one output end of the multiplexer, a device output end, which is connected to another output end of the multiplexer; and a busyness detection module, which is connected to the middle of the HID chip and the device output end. The USB sharer may reach a sharing function of “N to 1” by applying N−1 sets of “2 to 1” sharer, in which, at least one “2 to 1” sharer's output end is connected to the device output end and, for other N−2 sets of “2 to 1” sharer, of which at least one output end is connected to the input end of another “2 to 1” sharers.
Claims8
A computer accessory device—USB sharer achieves a “N to 1” sharer with N−1 sets of “2 to 1” sharer, wherein an output side of at least one “2 to 1” sharer is connected to the device output side, and the other N−2 sets of “2 to 1” sharer have an output side connected to the input side of another “2 to 1” sharer, wherein N is a positive integer that is larger or equal to 2, wherein the “2 to 1” sharer is comprised of:
- a multiplexer, a human interface device chip, a device output side, and a busyness detection circuit, which is connected between the human interface device chip and the device output side.
Dependencies are inferred from the claim text.