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PSK <Phase deviation irregularity>
Reading: Tweet s k
Full spelling: Phase Shift Keying
Field:
Network technology > PSK
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At one of the modulation techniques which convert digital value to the analog signal, the system which expresses information with combination of the plural waves where phase slips.
You use the sine wave which becomes standard and the wave where phase slips, by the fact that another value is allotted to each one you are worthy of plurally at one time sending and receiving. There is a feature that also the frequency zone where it is possible, is difficult to have an influence on the attenuation of noise and the signal, necessary becomes to transmit many items of information of one time with many values irregularity may be narrow.
Depending upon, which you divide phase finely, there are several systems they can send the mass information of one time of extent which divides finely, but it becomes easy to receive the influence of noise. The wave becoming standard reversed (180 degree phase slipped) the system which uses two waves of the wave BPSK (Binary PSK), 90 degrees the system which uses four waves which slip QPSK 45 degrees the system each which uses eight waves which slip is called 8PSK. Furthermore, the originally PSK uses absolute phase from the reference signal, but the wave of one ago DPSK which is identified relatively about some phase has slipped in standard, (Differential PSK) with there is a system which is said, when such as PSK simply, when it is DPSK is many. |
PSN
Reading: Tweet s n
Full spelling: Processor Serial Number
Field:
Microprocessor > x86/Intel > Intel > PSN
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The processor specific identification number which the Intel corporation loads onto the microprocessor after the Pentium III. The number which is different to all tips/chips is allotted, is used in the identification of the computer. It is possible also to turn off this function with the intention of the user. You can think application such as identification of the customer who using Internet, calculates the computer which is in robbery, in electronic commerce. At the beginning, it was the schedule which ships Pentium III when this function is made effective, but when from the consumer organization, it is the technology which infringes the privacy of the buyer, terrific repulsion was received, the same company modified the setting when shipping “invalidly”. In addition, with Pentium 4 which is the succession of Pentium III as for PSN it was deleted. |
PS one
Reading: Tweet s one
Field:
Multimedia > game > game machine for home > PS one
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The SONY computer entertainment sold in 2000 June, the small-sized play station.
But as for basic function the same as the former play station, substance size 193×38×144mm weight specific volume approximately 1/3 calls adopted compact design vis-a-vis approximately 550g and, until recently the machine, became easy to carry.
Combining with private liquid crystal display and the portable telephone connector cable etc, ahead and the like travelling the game of the play station can be enjoyed easily. However, because it does not become battery drive, it is not suited for the use with the outside. In addition, but from play station 2 the type which is sold afterwards, it corresponds to only the software for the play station.
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pSOS
Reading: [pisosu]
Field:
OS > Installation/real time > pSOS
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| The Integrated Systems corporation (ISI) for the installed equipment which was developed real-time Operating System. Advanced function is a special feature e.g., correspondence to multiprocessor and, it corresponds to IPv6 at stage 1997. Adoption example is many in the digital camera and the like. ISI in 2000 is absorbed at the Wind River corporation of same trade, pSOS is integrated in real-time Operating System product series of the same company.
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PSP <[pureisuteshiyon] portable>
Reading: Tweet the s tweet
Full spelling: PlayStation Portable
Field:
Multimedia > game > game machine for home > PSP
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It was sold in 2004 December, the portable type game machine of SONY
PSP even has 3 dimensional graphic function and the animated picture playback function which “play station 2 averages” are said, it is possible to enjoy the game which uses 3D expression and the audio kind of animated picture which could be enjoyed until recently with only deferred type ahead going out. Also image title and the like in order to play back with PSP is sold, as a portable videoplayer it is possible to utilize.
The individual the optical disk which is called “UMD” (Universal Media Disk) was adopted for the media which supplies the game. This being something which stores the disk of the diameter 6cm which going around is smaller than single CD to the cartridge, has the capacity of 1.8GB. The identification by media ID and the contents are protected powerful encoding with 128 bits AES by. In addition, it corresponds to also the memory card standard “memory stick PRO duo” where, SONY promotes it is used in retention and the like of the data which is downloaded. The image data of the movie and the like was recorded to UMD, also PSP playback private title is sold from each company.
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PsPC <Palm size PC>
Alias:
P/PC and Palm-size PC
Field:
Mobile > PDA > Windows > PsPC
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| Specification of personal computer of palm size which the Microsoft corporation has lectured, loads Windows CE of the same company. There is no keyboard, operating with only the pen major feature. It can use function such as E-mail and schedule management and handwritten memo, also cooperation of the data of the Windows personal computer has become easy. The product where hardware manufacturer each company parallels to this specification is developed.
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PSTN <Public exchange telephone network>
Full spelling: Public Switched Telephone Networks
Field:
Communication service > public network > PSTN
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| It is general joining telephone line network. The and so on it is translated. Connecting the telephone to end, connecting to the partner with circuit switching system, although it does audio telephone call, you use. To do data communication, you connect modem between the computer and the circuit, the data string and you are necessary to do the mutual conversion of the aural signal. |
PSX
Reading: Tweet the s x
Field:
Multimedia > home appliance /AV equipment > PSX
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| It sold in the SONY 2003 December, the hard disk on-board DVD recorder of play station 2 built-in.
160 - It builds in the hard disk of 250GB, it is possible to videotape television broadcasting and the like. DVD drive corresponds to DVD-R RW, it is possible to write out the video recording contents which are retained in the hard disk with 12 time speed.
Function of game machine (PS2) is built in, if the controller of the difference sale is connected, can the game for PS2 (and, for first play station) play.
In addition, there is also a record playback function of the photograph picture which cooperates with the digital camera and a function etc which from music CD records music in the hard disk. |
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