摘要:
The present invention relates to sound data transmission between a wireless sound transmitter that transmits sound data received from a multimedia source, and a wireless sound speaker that outputs sound signal by receiving the sound data, and more particularly, to a method for compensation of a replay time delay between the wireless sound speakers occurring when the multichannel sound data is distributed and transmitted from the wireless sound transmitter to the multiple wireless sound speakers. The differences in the replay time points occurring between the speakers in a TDMA based multichannel wireless transmission system, are pre-compensated through the delay of the sound data in the WSDT.
摘要:
Provided are an ink composition for an etching resist, a method of forming an etching resist pattern using the ink composition, and a method of forming a microchannel using the ink composition. The ink composition is suitable for forming a micro pattern due to its poor spreading on the substrate and is suitable for etching-resist for copper of a printed circuit board and deep etching a stainless steel substrate due to its excellent chemical properties that allow it to resist an etching solution.
摘要:
Provided are a method of preparing a zinc silicate-based phosphor and a zinc silicate-based phosphor prepared using the method. The method includes: (a) preparing a solution including a Zn precursor compound and a Si precursor compound; (b) adding a coprecipitant to the solution to form precipitation; and (c) heat treating the solution in which the precipitation is formed to synthesize zinc silicate (Zn2SiO4), wherein a solvent of the solution including the Zn precursor compound and the Si precursor compound includes at least one selected from the group consisting of ethanol, methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 1-hexanol, and 1-heptanol, and hydrazine is used as the coprecipitant.
摘要:
Provided are an ink composition for an etching resist, a method of forming an etching resist pattern using the ink composition, and a method of forming a microchannel using the ink composition. The ink composition is suitable for forming a micro pattern due to its poor spreading on the substrate and is suitable for etching-resist for copper of a printed circuit board and deep etching a stainless steel substrate due to its excellent chemical properties that allow it to resist an etching solution.
摘要:
A dual mass vibration damping flywheel includes a primary mass flywheel and a secondary mass flywheel connected to the primary mass flywheel. A drive plate having a characteristic shape is positioned between the primary mass flywheel and the secondary mass flywheel, the drive plate being rotated in response to rotation of the primary mass flywheel. A spring assembly is provided having a roller member at one end thereof, the roller member being in contact with the characteristic shape of the drive plate and compressing the spring assembly upon rotation of the drive plate. The drive plate is formed as an axe shape such that the roller of the spring assembly rolls in contact with the characteristic shape of the drive plate upon rotation of the drive plate and the primary mass flywheel. The effect of the spring assembly and roller against the characteristic shape of the drive plate is to dampen the vibration of the dual mass flywheel.
摘要:
The present invention relates to sound data transmission between a wireless sound transmitter that transmits sound data received from a multimedia source, and a wireless sound speaker that outputs sound signal by receiving the sound data, and more particularly, to a method for compensation of a play time delay between the wireless sound speakers occurring when the multichannel sound data is distributed and transmitted from the wireless sound transmitter to the multiple wireless sound speakers. The differences in the play time points occurring between the speakers in a TDMA based multichannel wireless transmission system, are pre-compensated through the delay of the sound data in the WSDT.
摘要:
Provided are a method of preparing a zinc silicate-based phosphor and a zinc silicate-based phosphor prepared using the method. The method includes: (a) preparing a solution including a Zn precursor compound and a Si precursor compound; (b) adding a coprecipitant to the solution to form precipitation; and (c) heat treating the solution in which the precipitation is formed to synthesize zinc silicate (Zn2SiO4), wherein a solvent of the solution including the Zn precursor compound and the Si precursor compound includes at least one selected from the group consisting of ethanol, methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 1-hexanol, and 1-heptanol, and hydrazine is used as the coprecipitant.