Device and method for transmitting optical data signals
First Claim
1. A device for transmitting an optical data signal over an optical transmission channel, the device comprising:
- (a) a differential phase shift keying unit for differential phase shift key coding of at least one serial data stream to generate a differential phase shift keying coded data stream;
(b) an amplitude shift keying unit for amplitude shift key coding of at least two further serial data streams that can be selectively activated with controllable switches to generate an amplitude shift keying coded data stream, wherein the switches are controlled in accordance with an operation mode control signal;
(c) a modulation unit for generating an optical data signal in accordance with a control signal that is formed from the generated differential phase shift keying coded data stream and from the generated amplitude shift keying coded data stream.
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Accused Products
Abstract
Disclosed are a device and a method for transmitting an optical data signal over an optical transmission channel, comprising a differential phase shift keying unit for differential phase shift keying of at least one serial data stream to generate a differential phase shift keying coded data stream; an amplitude shift keying unit for amplitude coding of at least two further serial data streams that can be selectively activated to generate an amplitude shift keying coded data stream; and a modulation unit for generating an optical data signal in accordance with a control signal that is, formed from the generated differential phase shift keying coded data stream and from the generated amplitude shift keying coded data stream.
10 Citations
16 Claims
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1. A device for transmitting an optical data signal over an optical transmission channel, the device comprising:
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(a) a differential phase shift keying unit for differential phase shift key coding of at least one serial data stream to generate a differential phase shift keying coded data stream; (b) an amplitude shift keying unit for amplitude shift key coding of at least two further serial data streams that can be selectively activated with controllable switches to generate an amplitude shift keying coded data stream, wherein the switches are controlled in accordance with an operation mode control signal; (c) a modulation unit for generating an optical data signal in accordance with a control signal that is formed from the generated differential phase shift keying coded data stream and from the generated amplitude shift keying coded data stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification