Abstract: An optical disc device includes a first optomechanical mechanism, a second optomechanical mechanism, and a positioning mechanism. The first optomechanical mechanism is located under an optical disc insertable into the optical disc drive to optically access a bottom surface of the optical disc. The second optomechanical mechanism is located over the optical disc insertable into the optical disc drive to optically access a top surface of the optical disc. The positioning mechanism is to precisely locate the second optomechanical mechanism over the optical disc for optically accessing the top surface of the optical disc and to prevent the second optomechanical mechanism from interfering with movement of the optical disc during insertion and removal of the optical disc into and from the optical disc drive.

Abstract: For at least some layers of a number of stacked layers of an optical disc that correspond to different colors, an optical beam is selectively impinged on a region of the optical disc. The optical beam has a wavelength to which the layer is uniquely sensitive as compared to other of the layers, to sufficiently heat the layer so as to cause the region to change from at least substantially translucent to a color to which the layer corresponds.

Abstract: A method of mapping a surface of a printable medium comprises illuminating the surface with electromagnetic radiation and focusing the electromagnetic radiation with a focusing means. The method also includes modulating the position of the focusing means using an actuator, wherein the actuator has a resonant frequency. An input signal is provided to the actuator, wherein the input signal comprises an AC waveform having a frequency. The frequency does not correspond to the resonant frequency of the actuator. The waveform does not have higher harmonics corresponding to the resonant frequency of the actuator.

Abstract: A telephony network optimization system and method comprises receiving a request from an application to provide to the application service on a telephony network. The method also comprises automatically allocating to the application a channel on the telephony network to provide balanced network service in response to telephony parameters.

Abstract: A telephony network optimization system and method comprises receiving a request from an application to provide to the application service on a telephony network. The method also comprises automatically allocating to the application a channel on the telephony network to provide balanced network service in response to telephony parameters.

Abstract: A network bandwidth optimization method is disclosed. The method comprises receiving a request from an application to provide to the application network service on a network. The method also comprises automatically allocating the application a channel on the network to provide network service in response to a quality of service parameter if sufficient bandwidth exists on the network.