Abstract: An integrated optical circuit having a turning mirror formed by an end surface of a planar waveguide forms a turning mirror deflector surface. More specifically, the integrated optical circuit includes a planar optical waveguide formed within a cladding layer wherein the planar waveguide has a deflector end surface positioned adjacent to a region, such as a gap. The refractive indices of the planar waveguide and region are in a ratio of no less than approximately 1.3 to provide a desired refractive index discontinuity. This refractive index discontinuity in combination with the positioning of the deflector end surface at an angle relative to an axis extending perpendicular to the direction of the waveguide in the range of 24.degree. and 67.degree. enables an advantageous deflection of an optical signal.

Abstract: A temporally-pipelined predictive encoder/decoder circuit for encoding or decoding an input signal containing a sequence of data frames received at a particular frame rate and frame data rate into an output signal having an equal frame rate employs a plurality of N predictive encoders/decoders. An input buffer may be used to extract the information for each data frame in the input signal and supply such information to a corresponding one of the encoders/decoders at rate of 1/N of the particular frame data rate. Each encoder/decoder generates corresponding encoded/decoded information as it is received as well as provides digitized frame information to the encoder/decoder processing the next received image frame. The encoded/decoded information is provided to corresponding frame buffers which temporarily store such information.

Abstract: A method of operating a telecommunication network to route a first phone call, from a caller to a channel of a free position of a plurality of positions at a selected destination of a network subscriber, based on voice and data transport capability, and for connecting a second phone call from the caller to a second channel of the same free position to create a multi-channel data call is disclosed. The selected destination is one of a plurality of destinations selected by the network subscriber identified by a common telephone number. Each of the plurality of positions is associated with a discrete telephone number. A plurality of discriminators common to both voice and data calls are established for the call. An additional data rate discriminator is established for a data call corresponding to a requested data rate for the calling party. A database is accessed in response to receiving the common telephone from the calling party for obtaining a destination number for data calls.

Abstract: A method of operating a telecommunication network to route a multi-channel call, made up of phone calls placed at substantially the same time, from a caller at a calling number to an agent position at a selected destination of a network subscriber, based on voice and data transport capability, for increased bandwidth communication is disclosed. The selected destination is one of multiple destinations selected by the network subscriber identified by a common telephone number. Each of the phone calls are associated with a plurality of discriminators common to both voice and data calls. An additional data rate discriminator is established which corresponds to a data rate used by the caller when the phone calls are data calls.