Abstract: A remote control handset for cordless communication with a video controller enables enhanced video control and telephonic communication through the handset in an integrated communication network. Interface features on an integrated remote control and phone handset and in graphical screens displayed on the video appliance to facilitate user control of viewing and telephonic functions available in the aforementioned architecture. The user interface comprises controls or push buttons on a control panel incorporated into the handset. The user interface also comprises graphical screens which may be configured by the user to appear as a picture-in-picture with a video broadcast program on the video appliance, or as a full screen on the video appliance. The invention also provides speed dial features in which a number displayed on an advertisement on the video appliance may be dialed by the user upon engagement of a single control button on the handset.

Abstract: A method and a system for acquiring data frame timing in a discrete multitone modem system in which an acquisition frame is generated having a first predetermined number of impulse signals. Each impulse signal is spaced in time by 2(P+1)T.sub.s, such that 1/T.sub.s is a sample transmission rate, and P is a time length in samples of a cyclic prefix that is added to a data frame. The cyclic prefix length P is chosen such that a channel impulse response seen at a receiver effectively spans no more than P+1 samples when a received signal is sampled at the 1/T.sub.s rate. Data frames are generated subsequent to the acquisition frame. Each data frame includes a cyclic prefix and at least as many data samples as samples of the cyclic prefix. The acquisition and data frames are converted to an analog signal for transmission. The received acquisition frame is sampled and a summation window is advanced one sample at a time through the received acquisition frame.

Abstract: A multiple channel cathode ray tube video display provides for adjusting brightness of the displayed channel by a single input control, such a trackball or keyboard, to a computer that generates a channel coded binary word that is held in one of a plurality of memory latches, each corresponding to a channel. The binary word is converted to an analog brightness signal that controls the gain of a corresponding one of a plurality of video signal amplifiers.

Abstract: A system for time-compressing radar video is disclosed to improve the grac presentation thereof on a CRT display. Quantized input video is pipelined as cell pairs into and out of a pair of parallelly-arranged memory banks by means of input and output latches. The memory banks are controlled having alternating read and write modes which are interchanged in synchronism with the video scan period so that a preceding scan is read out of one bank at a controlled read clock frequency while a current scan is written into the other bank at a fixed write clock frequency, the degree of video compression being determined by the ratio of the read-to-write frequencies. A pair of series-connected rate multipliers each are fed 6-bit rate words for varying the read clock frequency on either a linear or non-linear scale.