Abstract:
The present invention provides an encoding and decoding apparatus used for the compression and expansion of data. A state machine is provided having a plurality of states. Each state has at least one transition pair. Each element of the transition pair comprises zero or more bits representative of the compact code to be output and the identification of the next state to proceed to. The transition pair reflects an output for a yes and no response associated with the probability of the data to be compacted and whether the data falls within that probability.
Abstract:
A reproduction apparatus includes a communication interface having an RS-232 interface and a modem, thereby permitting both on-site and remote communication with a diagnostic and administrative device. The RS-232 interface and modem enable the use of standard hardware and non-dedicated telephone lines for the purpose of recording apparatus usage, feature utilization, and performing diagnostic routines on the reproduction apparatus.
Abstract:
Transforms such as the DCT are useful for image compression. One close relative of the DCT is preferred for its arithmetic simplicity. A method is described whereby the image compression is done with no multiplications. Other enhancements are made to improve image quality.
Abstract:
A line sensor with photosites accurately located for color scanning. The sensor includes a plurality of photosites arranged in a two-dimensional, staggered pattern which is repeated across the length of the sensor. Only one photosite is located for every direction perpendicular to the axis of the line image. Individual color filters extend over all the photosites located at the same perpendicular distance from the line image axis. In one embodiment, the filters are disposed on separate transparent members which are aligned and assembled over the photosites.
Abstract:
Apparatus and process for producing multi-sheet, collated copy sets of a multi-original document with apparatus for monitoring the copy sets for confirming that each copy set contains all of the sheets, and has no grossly skewed, or unwanted duplicate or blank sheets. First electrical information signals characteristic of the images on the originals and second electrical information signals characteristic of the images on the copy set sheets are compared to produce an error signal representative of differences therebetween. A malfunction of the copier/printer is indicated in response to error signals of at least a predetermined magnitude.
Abstract:
Apparatus is disclosed for determining whether the duty cycle of a periodic signal produced by an incremental encoder is within a predetermined acceptable range. The apparatus includes an oscillator which produces clock pulses at a substantially higher frequency than the periodic signal and a counter which is effective during a selected period of the periodic signal to add the number of clock pulses produced during that portion of the period when the square wave signal is high and subtract from the accumulated number, the number of clock pulses produced when the signal is low. A detector, in response to the final number held by the counter, determines whether the duty cycle is within the predetermined acceptable range.
Abstract:
In a multi-threaded processor, thread priority variables are set up in memory. The actual assignment of thread priority is based on the expiration of a thread precedence counter. To further augment, the effectiveness of the thread precedence counters, starting counters are associated with each thread that serve as a multiplier for the value to be used in the thread precedence counter. The value in the starting counters are manipulated so as to prevent one thread from getting undue priority to the resources of the multi-threaded processor.
Abstract:
In one embodiment, a conflict detection logic is configured to receive a plurality of memory requests from an arbiter of a coherent fabric of a system on a chip (SoC). The conflict detection logic includes snoop filter logic to downgrade a first snooped memory request for a first address to an unsnooped memory request when an indicator associated with the first address indicates that the coherent fabric has control of the first address. Other embodiments are described and claimed.
Abstract:
Methods and apparatuses for selectively displaying a video program are disclosed. A system for selectively displaying a video program in accordance with the present invention comprises a transmission station, including a server for attaching information to the video program, a plurality of satellites receiving at least an uplink signal which includes the information and the video program from the transmission station and producing a downlink signal based on the uplink signal, an antenna, the antenna receiving the downlink signal, and at least one receiver, coupled to the antenna, for receiving the downlink signal and interpreting the information in the downlink signal, wherein the at least one receiver selectively displays the video program based on at least the interpreted information.
Abstract:
A method and apparatus for coupling an Integrated Receiver Decoder (IRD) to a telephone line via a coaxial cable used for delivering direct broadcast satellite signals to the IRD. One embodiment comprises a port coupler, coupled to a telephone line and to the coaxial cable, and a client unit, coupled between the port coupler and the IRD, wherein the port coupler connects the IRD to the direct broadcast satellite signals and connects the IRD to the phone line via the client unit, and at least satellite signals, satellite control signals, telephone data signals, and telephone system protocol signals travel on the coaxial cable between the client unit and the port coupler.