摘要:
Ethyl acetate is produced in good yield by reacting ethylene with acetic acid in the presence of a catalyst comprising a tungstophosphoric acid of which 10-90% of the total amount of proton is replaced with a member selected from the group consisting of (a) cesium metal cation, (b) a combination of cesium metal cation and at least one cation selected from alkali metal cations other than cesium cation, and (c) a combination of cesium metal cation and at least one cation of iron group metal cations.
摘要:
Cyclohexyl acetate is produced by reacting acetic acid with cyclohexene in the presence of a heteropolyacid mainly composed of oxides of tungsten as a catalyst. The heteropolyacid may have water of crystallization adjusted to the amount of average 3.0 molecules or less per one molecule of the heteropolyacid. Cyclohexyl acetate can be produced in high selectivity and high conversion. The catalyst is effective even at a low temperature and stable even at a high temperature.
摘要:
There is provided a process for reacting water and olefin such as ethylene or propylene under mild conditions in the presence of a polyorganosiloxane contaminating sulfonic acid groups to produce alcohol corresponding to the olefin with high yield and selectivity.
摘要:
One embodiment of the invention is useful when updating data of a database which is configured to take in data through a network, has a part to be updated, and takes in information of media stored in a local storage, and characterized by that a storage place assumed to have stored an image file is retrieved in a specific order, and an image file is obtained and downloaded, based on an instruction to transfer music data stored in a recorder to a player.
摘要:
A method is for controlling operation mode. The method includes: activating an application for controlling a media reproduction system that reproduces at least one of audio and video files; disabling an operation mode switching function for switching a processing speed of a processor in accordance with a load of the processor while the application is activated; managing a state of the application by the application; determining an operation mode suitable for the state by the application; and controlling the media reproduction system to be performed in the operation mode by the processor.
摘要:
A portable recording and reproducing apparatus has a communication unit configured to make communication with an external device, a recording unit configured to record contents information, a display unit configured to display image information, and a controller configured to notify image size information displayable on the display unit via the communication unit to the external device, to make an instruction of transferring desired contents information and image information associated therewith, to record the contents information and the image information in the recording unit when receiving the same, and further to display the associated image information on the display unit while reading and reproducing it.
摘要:
According to one embodiment, a key management apparatus comprises a decrypting module configured to read a first media unique key and an encrypted content key corresponding to a selected content from a first information storage medium and to decrypt the encrypted content key with the first media unique key in order to obtain a content key in a plain version, an encryption module configured to read a second media unique key from a second information storage medium and to encrypt the content key in the plain version with the second media unique key in order to obtain an encrypted content key for the second medium, and a write module configured to write the encrypted content key for the second medium to a user data area of the second medium.
摘要:
According to one embodiment, a portable device includes a casing, a display contained in the casing and having a first side in proximity to a position of the casing which is held by a user with a hand, a plurality of icons displayed on the display, a touch panel which is provided over the display and by which the icons are operated, and a sensor which is provided in the casing and senses the position held by the user. The icons are arranged in a first area defined by an arc of a circle about a first corner as a center located at a lower end of the first side, and chords extending between the arc and the first corner.
摘要:
The invention provides a sound-reproducing apparatus and a high frequency interpolation-processing method in each of which high frequency interpolation processing having a light burden imposed thereon can be executed. Compressed audio data is decoded by a decoder (202a) and the resulting audio signal is transmitted to a harmonizer (209a). Auxiliary information such as a sampling rate and a bit rate contained in the decoded audio signal is read out by a header reader (209b) and is transmitted to a harmonizer (209a). Communication of signals from/to respective portions is made through a bus (210). The harmonizer (209a) has a preset for an interpolation band obtained in accordance with a format and a sampling frequency of the compressed audio data, and executes processing by referring to file information transmitted thereto from the header reader (209b).
摘要:
According to one embodiment, there is provided a portable display device including a recording section which records a video file, a decoder section which decodes the video file and outputs a video/audio signal, a display section which displays a video picture on a screen based on the video/audio signal from the decoder section, a backlight section which irradiates a back side of the display section, and a control section which determines the video file to be reproduced based on attribute information and turns off the irradiation of the backlight section based on a determined result.