Abstract: The invention relates to a scratch pad memory system having a table of contents for identifying program material recorded on a magnetic tape in a cassette or cartridge with program material being recorded or changed responsive to user command. The scratch pad memory system comprising an address register, a read only storage, and having an interface for read/write storage and a text displaying terminal coupled to a television receiver for display of program material.

Abstract: A device for following and recursively estimating the local state of pict contours defined by lines of N points distributed in accordance with an orthogonal sampling structure, said points being defined by successive numerical samples.The invention also relates to a differential coded pulse modulation coder and a differential coded pulse modulation decoder.

Abstract: The present invention relates to a process for making semi-conductor components on an amorphous substrate, comprising two phases, wherein, in a first phase, the substrate is introduced into a deposition chamber and a uniform deposit is made of four successive primary layers on all this substrate, without contact with the outside atmosphere: a first layer of protective insulating material, a second layer of semiconductor material, a third layer of insulating material, of smaller thickness than the first layer, and finally a fourth layer of a metal; and, in a second phase, the substrate coated with these four layers is withdrawn from the deposition chamber and the last three layers are subjected to photoetching and ancillary deposition operations, which are appropriate for the structure of the component to be obtained.

Abstract: In a system for broadcasting data in combination with a television signal, he emitting station broadcasts, sets (blocks) of data which may be in-coming from several paths, the sets of data being time multiplexed. The present invention makes it possible to use the same television broadcast system, regardless of the television standards which may be used, with a minimum of modifications in the conventional television receivers. The frequence of the binary elements used to transmit data is made to vary as a function of the band width of the television signal which in turn, corresponds to the TV broadcast used in the area where the data is broadcast.