Abstract: A method and system for supplying a digital video signal from a source to a sink are described. The digital video signal includes digital video data for three different colors and a pixel clock signal, such as DVI and HDMI. The digital video data and the pixel clock signal are received at a transmitter which sends a signal representative of the frequency of the pixel clock signal over a cable connecting the transmitter and a receiver. Digital video data for three different colors is sent over three different twisted wire pairs of the cable to the receiver. A local pixel clock signal is generated at the receiver using the signal representative of the frequency of the pixel clock signal. The local pixel clock signal is used to process the received digital video data and recovered digital video data and the local pixel clock signal are output.

Abstract: The invention relates to a method for enabling a user to safely interact with a smart utility meter (1), comprising the following steps:—Transmission by said user of a command signal from a remote handheld electronic device (2) through a short range wireless optical communication link (3) between optical transmitting means (20) provided on said handheld electronic device (2) and optical receiving means (11) provided on said smart utility meter (1); —Reception of said command signal on said optical receiving means (11).

Abstract: A digital video signal has a frame rate and a resolution within a range of resolutions. If the resolution of the received digital video signal is in a lower resolution range then it is not compressed or if in a higher resolution range the video color data is compressed by a constant compression ratio. Frames of digital color samples are transmitted and frames of digital color samples are received at the same frame rate. The received compressed digital color samples are expanded by a constant expansion ratio when transmitted in a compressed format and not expanded if transmitted in the uncompressed video format. A digital video signal is output with a resolution the same as the resolution of the original digital video signal.

Abstract: A digital video signal has a frame rate and a resolution within a range of resolutions. If the resolution of the received digital video signal is in a lower resolution range then it is not compressed or if in a higher resolution range the video colour data is compressed by a constant compression ratio. Frames of digital colour samples are transmitted and frames of digital colour samples are received at the same frame rate. The received compressed digital colour samples are expanded by a constant expansion ratio when transmitted in a compressed format and not expanded if transmitted in the uncompressed video format. A digital video signal is output with a resolution the same as the resolution of the original digital video signal.

Abstract: The invention relates to a method for enabling a user to safely interact with a smart utility meter (1), comprising the following steps:—Transmission by said user of a command signal from a remote handheld electronic device (2) through a short range wireless optical communication link (3) between optical transmitting means (20) provided on said handheld electronic device (2) and optical receiving means (11) provided on said smart utility meter (1);—Reception of said command signal on said optical receiving means (11).

Abstract: A method and system for supplying a digital video signal from a source to a sink are described. The digital video signal includes digital video data for three different colours and a pixel clock signal, such as DVI and HDMI. The digital video data and the pixel clock signal are received at a transmitter which sends a signal representative of the frequency of the pixel clock signal over a cable connecting the transmitter and a receiver. Digital video data for three different colours is sent over three different twisted wire pairs of the cable to the receiver. A local pixel clock signal is generated at the receiver using the signal representative of the frequency of the pixel clock signal. The local pixel clock signal is used to process the received digital video data and recovered digital video data and the local pixel clock signal are output.