摘要:
The present invention relates to a micropattern retardation element requiring no stretch processing and no extremely high positioning accuracy in cutting films, and the like, and having the retardation region controlled in width of a micron unit, and a producing method therefore. Said micropattern retardation element can be obtained by forming a liquid crystalline or non liquid crystalline polymer thin film layer having photoactive groups, on a substrate, and then, after orientation treatment in a micropattern form, forming a birefringence layer so as to contact with said polymer thin film layer, so that birefringence molecules of said birefringence layer are oriented according to orientation of photoactive groups in said thin film. Said retardation element is used in a three-dimensional display, and the like.
摘要:
A nibble stream containing MIDI music data words and synchronous nibbles and an external audio signal are selectively converted to an audio-frequency signal, which in turn is converted to a set of PCM codes for storing it in a compact disc; and the audio frequency signal, which is demodulated from the PCM data codes, is analyzed to see which is the origin of the audio frequency signal on the basis of the signal level and what sort of modulation technique was employed on the basis of features of the audio frequency signal such as peak-to-peak intervals and similarity to reference waveforms so that the nibble stream or the external audio signal is exactly reproduced from the audio frequency signal.
摘要:
A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at recording points over the sound board, and a group of waveform data sets are produced from the analog audio signal through sampling and analog-to-digital conversion; when electronic tones are generated, delay parameters and volume parameters are determined on the basis of differences between the recording points and tone radiating points occupied by loud speakers, the sets of waveform data series are sequentially read out from the group of waveform data sets and are modified with the delay parameters and volume parameters so that the electronic tones become close to the acoustic tones.
摘要:
A polarized element formed by arranging a dichroic molecule in a micropattern form on a thin film layer of a liquid crystalline resin having a photoactive group irradiated by a linearly polarized light. The micropattern polarized element can be produced without need of a very high position-matching precision as sticking.
摘要:
A jig is used in an assemblage between key sensors and an acoustic piano, and the jig has a shutter guide assembled with a casing of optical sensor array for aligning slits with target trajectories of shutter plates and pieces of adhesive double coated tape adhered to the shutter plates for aligning the shutter plates with associated white/black keys, wherein the shutter plates are inserted into the slits so that the shutter plates are placed on the target trajectories, and the white/black keys are moved along the target trajectories until they are brought into contact with the pieces of adhesive double coated tape for temporality tacking the shutter plates to the associated white/black keys.
摘要:
A keyboard musical instrument is a combination of an acoustic piano, a silent system and an electronic sound generating system, and the silent system includes a change-over mechanism and a shank stopper connected to the change-over mechanism so as to be changed between a free position and a blocking position, wherein a change-over mechanism gives rise to a rotation of the shank stopper around vertical axes spaced apart from each other on a horizontal virtual plane so that the hammer stopper is free from a twist.
摘要:
A brand-new player piano is designed to have a compatibility with the conventional player piano and the electronic musical instrument based on the MIDI standard while providing a capability of playing a highly skilled music performance such as the performance technique of half stroke. The player piano creates a new version of performance information which uses a key-depression event frame in addition to a string-striking event frame and a key-release event frame. Herein, the string-striking event frame contains extensional information for a string-striking velocity, while the key-release event frame contains extensional information for a key-release velocity. The extensional information is not specifically defined by the MIDI standard and is neglected by the conventional player piano. The key-depression event frame, which is newly introduced by this player piano and is neglected by the conventional player piano, represents a note number and a key-depression velocity as well as extensional information for the key-depression velocity. Using the extensional information, it is possible to control each of the velocities more precisely. The performance information is recorded on a recording media. At a reproduction, the player piano produces trajectory data and position data with respect to each of the keys on the basis of the performance information. The trajectory data represent a key-depression-uniform-motion trajectory and a key-depression-slow-down trajectory along which a key moves when being depressed. The trajectory data also represent a key-release-uniform-motion trajectory and a key-release-slow-up trajectory along which the key moves when being released.
摘要:
A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at recording points over the sound board, and a group of waveform data sets are produced from the analog audio signal through sampling and analog-to-digital conversion; when electronic tones are generated, delay parameters and volume parameters are determined on the basis of differences between the recording points and tone radiating points occupied by loud speakers, the sets of waveform data series are sequentially read out from the group of waveform data sets and are modified with the delay parameters and volume parameters so that the electronic tones become close to the acoustic tones.
摘要:
A liquid crystalline sulfur compound exhibiting high anisotropic factor of dipolemoment is provided. A terphenyl skeleton sulfur compound expressed by the general formula (I) is provided. A compound is preferred wherein, in the general formula (I), m is 1, n is 5 to 18, and R3 is an alkyl group wherein the number of carbon atoms is n or fewer than n. A method of synthesisng the terphenyl skeleton sulfur compound wherein, after implementing the synthesizing processes for a methoxy terphenyl derivative, a hydroxy terphenyl derivative, and terphenyl alkyloxy bromide derivative, that bromide derivative and thiourea are caused to react, etc. A self-assembled monolayer made using the terphenyl skeleton sulfur compound noted above is also provided.
摘要:
A hammer sensor incorporated in a keyboard musical instrument monitors a motion of each hammer assembly, and a controller not only determines a hammer velocity and an impact time for generating a set of music data codes representative of a music performance but also measures an actual distance between the hammer sensor and an impact point against a music string on the basis of a forward trajectory and a backward trajectory measured by the hammer sensor; thereby allowing a worker to easily adjust the hammer sensor to an appropriate position.