Abstract: Printing systems, softwares and methods permit an untrained user to characterize unknown printing media. A printing system includes a printing device that prints on a medium according to settings. The printing system also includes an interface, and a controller for controlling the settings responsive to inputs from the interface. The controller has an on line mode for printing while the settings are unchanging, and an off line mode for calibration of the settings. While in the off line mode, the controller is adapted to identify a plurality of calibration values for the setting. The controller is further adapted to control the printing device to iteratively set the setting of the printing device according to one of the first calibration values and then print a sample image. This may take place for all the calibration values. Having the sample images, the user selects the best one, and enters its a characteristic number. That number is interpreted to derive the preferred calibration value for the setting.

Abstract: Devices, softwares and methods for centralized session planning while in a DCF mode. An access point plans centrally a schedule of individual sessions with each station. Then it announces to each peripheral station the onset of the session by a polling pulse that includes the return address of a MAC layer of the station. The addressed peripheral device then transmits data from its MAC layer.

Abstract: Devices, softwares and methods reschedule multi-party sessions upon premature termination of a wireless communication session. Upon sensing a premature termination, an access point transmits a rescheduling frame. All sessions are advanced in time, which saves time in the end, without leaving quiet times. In addition, the invention avoids a hidden node problem.

Abstract: Devices, softwares and methods advance the scheduling of a next contention session upon premature termination of a contention free session. A Hybrid Coordinator detects when the exchange of wireless transmissions finishes before the contention free window is scheduled to end. Upon such detection, the Hybrid Coordinator transmits a notification to advance the scheduling of the next contention session. Upon sensing the notification, contention resumes by the participating peripherals.