An interactive television program guide system is provided. An interactive television program guide provides users with an opportunity to select programs for recording on a remote media server. Programs may also be recorded on a local media server. The program guide provides users with VCR-like control over programs that are played back from the media servers and over real-time cached copies of the programs. The program guide also provides users with an opportunity to designate gift recipients for whom programs may be recorded.

Client-server based interactive television program guide system with remote server recording

Methods and systems that provide enhanced personal video recorder (“PVR”) and interactive television program guide (“IPG”) functionality are provided. An interactive television application (“application”) may be implemented to provide such functionality. The application may be used to display a list of PVR recordings, to schedule recordings to a PVR, to configure recordings, to view a list of scheduled recordings, to configure recording settings, or to select delete priority settings for recordings. The application may integrate pay-per-view and PVR functionality. The application may send user notifications for changes that are to be made to the recording content of a PVR. Live programming may be buffered by the application using a straight buffers that are created for each new program. Parallel buffers for concurrent programs may be implemented using multiple tuners. Straight buffers may be used in managing or controlling the flow of programming. Television content may be automatically paused when a user is engaged in using the application. Multiple IPGs for different users of a PVR may be implemented. Other PVR related features are also provided.

Systems and methods for interactive program guides with personal video recording features

Gas turbine inter-stage reheating system

A heat exchanger (20) comprising: a plurality of longitudinally extending tubes (60) grouped into at least first, second and third passes (P1-P3); the tubes (P1) in the first pass being serially connected with tubes (P2) in the pass; the tubes (P2) in the second pass being serially connected with tubes (P3) in the second in the third pass; and wherein the number of tubes in the first pass (P1) is greater than the number of tubes in the third pass (P3).

Stepped heat exchanger coils

In a load regulating device for a gas turbine plant, which comprises in a flow-path for the working medium a compressor, heater and turbine in succession, the improvement, that at least one by-pass conduit having a flow-regulating element is provided, which by-pass conduit branches off the flow path at a point situated in the direction of flow of the working medium after a stage group of the compressor and in front of the heater, and opens into the flow path at a point situated between two stage groups of the turbine; this load-regulating device allowing good part-load efficiency.

Load control for gas turbine plant

This invention relates to a gas heater with tubular elements arranged in a combustion chamber. In particular it relates to a gas heater of this kind which is suitable especially for thermal power plants, in which a gaseous working medium, preferably air, after having been raised to a higher...

Ramified tubular gas heater

Hydrostatic shaft mounting

This invention relates to a plant for the production of compressed air, e. g. blast furnace air, in which air is brought in at least one compressor to a higher pressure than the pressure required in the compressed air consumer, then heated in a heater by a supply of heat derived from an external...

Plant for the production and heating of compressed air

This invention relates to a gas heater comprising a heating system arranged in a combustion chamber and at least two further heating systems designed for contact heating and arranged beyond said combustion chamber, the gas heater being intended more particularly for thermal power plants, in...

Furnace having sequentially arranged gas heating tubes

This invention relates to a gas heater primarily intended for use in a thermal power plant in which at least the greater part of a gaseous working medium, preferably air, describes a closed circuit, being raised to a higher pressure in at least one compressor, then brought to a higher temperature...

Ruegg Rudolf

Papers

Ramified tubular gas heater

Hydrostatic shaft mounting

Plant for the production and heating of compressed air

Furnace having sequentially arranged gas heating tubes

Operating gas heater for thermal power plants