Tektronix, Inc.

Avnera Corporation

Robert C Proebstel

Patrick A Quinn

Nigel Waites

Thomas Irrgang

Ian J Myles

Kenneth P Dobyns

Steven K Sullivan

Manpreet Singh Khaira

Paul M Gerlach

Samuel J Peters, Ii

Scott R Ketterer

David P Maguire

Jing-Fan Zhang

Manpreet S Kharia

Paul H Chandwick

Thor R Culverhouse

Nigel D Waites

An acoustic layer is added to a laptop-type personal computing device, comprising: enclosing walls, optionally&#x2014;one or more microphones, a signal processing device, at least one audio transducer, and an acoustic waveguide. The acoustic layer adjoins one or more internal areas of a laptop-type device. The signal processing device receives an internal signal from a laptop-type device. The signal processing device provides a directive sound enhancement of the audio input signals based on room acoustics, such as reverberation, echo, noise, delay, frequency response, and/or speaker-positional information that is determined by the signal processing device. The audio transducer device generates an audible audio output in response to an audio signal output from the signal processing device. The acoustic waveguide receives the audible audio output and generates an enhanced bass audio output from the acoustic waveguide.

Acoustic layer in media device providing enhanced audio performance

A soundskin for a pad-type device comprises a housing, at least one microphone, a signal processing device, at least one audio transducer, and an acoustic waveguide. The housing receives a pad-type device. The signal processing device receives a signal from a pad-type device when the pad-type device is received by the housing. The signal processing device provides a directive sound enhancement of the audio input signals based on room acoustics, such as reverberation, echo, noise, delay, frequency response, and/or speaker-positional information that is determined by the signal processing device. The audio transducer device generates an audible audio output in response to an audio signal output from the signal processing device. The acoustic waveguide receives the audible audio output and generates an enhanced bass audio output from the acoustic waveguide.

Pad-type device case providing enhanced audio functionality and output

A method for rasterization of a set of voltage-versus-time data-address pairs into horizontal and vertical locations of a multi-bit raster display memory of a digital oscilloscope or similar electronic data acquisition instrument is disclosed. It provides a new way of controlling digital intensity, by allowing the operator and/or a function based on the instrument's trigger rate to set the number of intensity units available for brightening the pixels affected by the rasterization of each acquisition data pair. If a vector has more pixels than there are units of intensity available, the number of pixels that are to be brightened is limited but spread out over the vector's length by an algorithm that includes at least some degree of randomization. If there are more units of intensity available than there are pixels to put them in, the extra ones can either be distributed into each pixel or randomly added along the vector or ignored. If the vector has no length, all of the available intensity, or some lesser amount of intensity, is put on one pixel. Setting a small minimum vector length, below which only limited vector fill is used, can save time by limiting the amount spent on insignificant details. Setting maximum and minimum intensity levels for those pixels that are affected by the rasterization process can limit saturation and assure that areas that receive only one or a few attacks will still have an intensity level that is perceptible. Sparse vector rasterization avoids the hard binary choice between using a dot mode or a vector mode, and gives the user an analog-like intensity control that produces a perceived continuum of viewing choices. It does this while maximizing the number of pixels updated within the context of how many waveforms are being acquired and need to be processed.

Sparse vector rasterization

Handheld television monitoring instrument

Vectorscope automatic burst positioning for properly aligning a vectorscope display uses a microprocessor (22) to control a phase shifter (14) according to the amplitudes of the chrominance components demodulated from an input color video signal during the burst interval. The demodulated chrominance components are sampled and digitized (18), and the digitized values are tested to determine whether they fall within a predetermined window. The microprocessor applies a statistical approach over a range of phase values to compute a final phase control signal value for the phase shifter that properly aligns the vectorscope display.

Vectorscope automatic burst positioning

Growing community of inventors

Beaverton, OR, United States of America

Robert C Proebstel