Input apparatus for hand-held electronic devices and computers
First Claim
1. An input apparatus for a hand-held electronic device and a computer, comprising:
- a main connection port, for connecting to the hand-held electronic device;
a communication port, for connecting to the computer;
an input controller, for providing a plurality of serial input signals;
a communication controller having a serial port coupled to the communication port, for receiving and converting the serial input signals into a set of differential signals transferred through the serial port; and
a route selection unit establishing a first route between the input controller and the main connection port and establishing a second route between the input controller and the communication controller, for selectively transferring the serial input signals over one of the first and the second routes.
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Accused Products
Abstract
An input apparatus for a hand-held electronic device and a computer. The universal input apparatus includes a main connection port, a communication port, an input controller, a communication controller and a route selection unit. The main connection port connects to the hand-held electronic device and the communication port connects to the computer. The input controller provides a plurality of serial input signals. The communication controller, having a serial port coupled to the communication port, is configured to convert the serial input signals into a pair of differential signals transferred through the serial port. Further, the route selection unit establishes a first route between the input controller and the main connection port and establishes a second route between the input controller and the communication controller. Therefore, the serial input signals can be transferred over the first route or the second route alternatively.
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Citations
23 Claims
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1. An input apparatus for a hand-held electronic device and a computer, comprising:
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a main connection port, for connecting to the hand-held electronic device; a communication port, for connecting to the computer; an input controller, for providing a plurality of serial input signals; a communication controller having a serial port coupled to the communication port, for receiving and converting the serial input signals into a set of differential signals transferred through the serial port; and a route selection unit establishing a first route between the input controller and the main connection port and establishing a second route between the input controller and the communication controller, for selectively transferring the serial input signals over one of the first and the second routes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A portable keyboard for data entry comprising:
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a main connection port having a first port and a second port, for connecting to a hand-held electronic device; a universal serial bus (USB) port, for connecting to a computer; a keyboard controller, for providing a data signal and a clock signal; a USB controller supporting USB hub function, comprising a downstream port coupled to the second port and an upstream port coupled to the USB port, for converting the data signal and the clock signal into a pair of USB differential signals, compliant with the USB specification, transferred through the upstream port, and for synchronizing the hand-held electronic device with the computer in response to a sync enable signal in which data is sent/received through the downstream port by way of the second port to/from the hand-held electronic device and through the upstream port by way of the USB port to/from the computer; and a route selection unit establishing a first route between the keyboard controller and the first port and establishing a second route between the keyboard controller and the USB controller, for selectively transferring the data and clock signals over the first route and the second route. - View Dependent Claims (17, 18, 19)
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20. An input apparatus attached to an electronic device and a computer comprising:
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a user control interface; a main connection port having a first port, for attaching the electronic device; a communication port, for connecting to the computer; an input controller, for generating a user-input signal when the user control interface is operated; a communication controller having an upstream port coupled to the communication port; a first route electrically coupled between the input controller and the first port; a second route electrically coupled between the input controller and the communication controller; and a route selection unit, for selectively transferring the user-input signal over the first route and the second route; wherein the user-input signal is transferred through the first route to the first port when the route selection unit selects the first route; wherein the user-input signal is transferred through the second route to the communication controller so as to output a corresponding transmission signal when the route selection unit selects the second route. - View Dependent Claims (21, 22, 23)
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Specification