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.
26 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