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
0 Petitions
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.
-
Citations
22 Claims
-
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, 18, 19)
-
7. 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, the method including transmitting a USB3 signal, wherein USB3 data from the USB3 signal are transmitted differentially from a host to a device (SSTX+ and SSTX−
) via the first conductor pair (32) and the USB3 data are transmitted differentially from the device to the host (SSRX+ and SSRX−
) via the second conductor pair (34), while the D+/D−
signal is transmitted via a phantom circuit.
- ) of the third data signal is transmitted as a common mode component via the second conductor pair, the method including transmitting a USB3 signal, wherein USB3 data from the USB3 signal are transmitted differentially from a host to a device (SSTX+ and SSTX−
-
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, 20, 21)
- ;
-
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)
- ;
-
22. 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;wherein the two pairs of transmitter signal conductors are arranged in a cable in a star quad form; and wherein said adapter includes 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.
- ;
Specification