METHOD FOR TRANSMITTING A USB SIGNAL AND USB TRANSMISSION SYSTEM
First Claim
1. A method for transmitting three data signals from a USB signal in which the first data signal is transmitted differentially via a first conductor pair and the second data signal is transmitted differentially via a second conductor pair, wherein a signal portion (D+) of the third data signal is transmitted as a common mode component via the first conductor pair and a reference portion (D−
- ) of the third data signal is transmitted as a common mode component via the second conductor pair.
1 Assignment
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Accused Products
Abstract
A method for transmitting three data signals from a USB signal in which the first data signal is transmitted differentially via a first conductor pair and the second data signal is transmitted differentially via a second conductor pair. A signal portion of the third data signal is transmitted as a common mode component via the first conductor pair and a reference portion of the third data signal is transmitted as a common mode component via the second conductor pair. A USB transmission system for carrying out this method and an adapter for a USB transmission system are presented.
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Citations
22 Claims
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1. A method for transmitting three data signals from a USB signal in which the first data signal is transmitted differentially via a first conductor pair and the second data signal is transmitted differentially via a second conductor pair, wherein a signal portion (D+) of the third data signal is transmitted as a common mode component via the first conductor pair and a reference portion (D−
- ) of the third data signal is transmitted as a common mode component via the second conductor pair.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 18, 19)
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8. A USB signal transmission system including two adapters connected together via two pairs of transmitter signal conductors, wherein each of the adapters has a USB interface for the input/output of a USB signal, such that the USB interfaces in each case have three pairs of USB signal conductors (SSTX+, SSTX−
- ;
SSRX+, SSRX−
;
D+, D−
) for the differential transmission of USB data signals which are coupled via a phantom circuit with the two pairs of transmitter signal conductors. - View Dependent Claims (9, 10, 11, 12, 13, 14, 21, 22)
- ;
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15. An adapter for a USB signal transmission system including a first interface in the form of a USB interface with three USB signal conductor pairs (SSTX+, SSTX−
- ;
SSRX+, SSRX−
;
D+, D−
), each pair being configured for the differential transmission of a USB data signal, and with a second interface with two transmitter signal conductor pairs, each pair being configured for the differential transmission of a data signal, such that a first common mode component is added to the differential USB data signal which is to be fed via the first USB signal conductor pair (SSTX+, SSTX−
) in order to generate a first differential transmission signal for transmission via the first transmitter signal conductor pair (32) and a second common mode component is added to the differential USB data signal which is to be fed via the second USB signal conductor pair (SSRX+, SSRX−
) in order to generate a second differential transmission signal for transmission via the second transmitter signal conductor pair (34), wherein the first common mode component corresponds to a signal portion (D+) of the differential USB data signal which is to be fed via the third USB signal conductor pair (D+, D−
) or a multiple or a fraction thereof and the second common mode component corresponds to a reference portion (D−
) of the differential signal which is to be fed via the third USB signal conductor pair (D+, D) or a multiple or fraction thereof. - View Dependent Claims (16, 17)
- ;
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20. The USB signal transmission system of clam 10, wherein the cable in the star quad form is designed in the form of an HSD connection.
Specification