Figure 287 Distance Adaptive Data rate Control – For multiuser distance adaptive is supported combining with receiver frame rate adaptive multirate controller. The receiver frame rate adaptive multirate controller is described in subclause15.2.6.2. 15.3 SS2DC Specification The Sequential Scalable 2D Code (SS2DC) works with different 2D codes (like QR, Color Code, VTASC, A-QL, etc.) organized in a combination of one or more codes sequentially in row and column manner. The SS2DC PHY supported data rates and operating conditions are shown in PHY VI operating modes Table 116. 15.3.1 SS2DC Reference Architecture The reference PHY architecture for SS2DC is illustrated in Figure 279. The data embedded on visual frame by overlaying 2D code patterns in defined displays visual area. After spread spectrum, data is transformed into SS2C coded 2D patterns according to the 2D Code encoder. Figure 288 Reference architecture for SS2DC PHY System – The spread spectrum used with SS2DC to have effective asynchronous and communication, distance adaptive scalable data rate controlled OWC. The SS2DC is used for enhanced display to camera communication in the real-time application usage scenario. The SS2DC works on, Receiver angle free and distance adaptive communication Receiver distance adaptive communication achieved by screen with interactive Camera Asynchronous and receiver frame rate independent communication Scalable bitrate controller for distance adaptive data rate control Enhanced multi-display model for transmission The receiver specific information for SS2DC Data Decoder is given in Annex M.4. 15.3.2 Spread Spectrum The spread spectrum used with SS2DC coded display based transmitter to add built-in adaptation on data recovery in addition to achieve the asynchronous communication with angle free and distance adaptive communication between transmitter and receiver. The subclause 15.2.2 contains more information about spread spectrum.
Figure 287 – Distance Adaptive Data rate Control For multiuser distance adaptive is supported combining with receiver frame rate adaptive multirate controller. The receiver frame rate adaptive multirate controller is described in subclause15.2.6.2. 15.3 SS2DC Specification The Sequential Scalable 2D Code (SS2DC) works with different 2D codes (like QR, Color Code, VTASC, A-QL, etc.) organized in a combination of one or more codes sequentially in row and column manner. The SS2DC PHY supported data rates and operating conditions are shown in PHY VI operating modes Table 116. 15.3.1 SS2DC Reference Architecture The reference PHY architecture for SS2DC is illustrated in Figure 279. The data embedded on visual frame by overlaying 2D code patterns in defined displays visual area. After spread spectrum, data is transformed into SS2C coded 2D patterns according to the 2D Code encoder. Figure 288 – Reference architecture for SS2DC PHY System The spread spectrum used with SS2DC to have effective asynchronous and communication, distance adaptive scalable data rate controlled OWC. The SS2DC is used for enhanced display to camera communication in the real-time application usage scenario. The SS2DC works on, Receiver angle free and distance adaptive communication Receiver distance adaptive communication achieved by screen with interactive Camera Asynchronous and receiver frame rate independent communication Scalable bitrate controller for distance adaptive data rate control Enhanced multi-display model for transmission The receiver specific information for SS2DC Data Decoder is given in Annex M.4. 15.3.2 Spread Spectrum The spread spectrum used with SS2DC coded display based transmitter to add built-in adaptation on data recovery in addition to achieve the asynchronous communication with angle free and distance adaptive communication between transmitter and receiver. The subclause 15.2.2 contains more information about spread spectrum.