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PLL
Reading: Tweet l l
Full spelling: Phase Locked Loop
Field:
Microprocessor > design/structure > PLL
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The input signal and the electronic circuit which agrees the frequency of reference frequency and the output signal. It detects the phase difference of the input signal and the output signal, the oscillator which changes frequency VCO and by the fact that the loop of the circuit is controlled, accurately it is possible to dispatch the signal of the frequency which same period is done. Besides the fact that dispatch frequency is maintained uniformly, it is possible also by the fact that the counter is installed to output the signal at frequency of integer two times the input signals. Not only being used for the frequency control of the portable telephone and the wireless radio, although it accelerates the internal clocking frequency of the microprocessor in integer two times the external clocks, it is used. The processor which uses this acceleration technology for the first time with 486DX2 of the Intel corporation, is adopted for many of the present high-speed device.
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PLM <Product life cycle management>
Reading: PL/M
Full spelling: Products Lifecycle Management
Alias:
Product life cycle management
Field:
Enterprise information system > business system > PLM
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The technique which you design from plan stage of manufactured products development, manages the product inclusively in all processes such as production and furthermore user support after the shipping.
Regarding product development process, for example if you can design the CAD data of the part, until the order, the assembly and completion of the part to sub-contractor you can be in common from design stage and can use substantial time shortening and cost compression are assured. As for the data management where is integrated with such, development process “PDM” with it is called, it is the important one element of PLM.
PLM is actualized, it is necessary for management, manpower management of production facilities, management of circulation and management etc of user support to be managed integrated other than PDM. Opinion from the user is fed back by the development origin easily, the designer does minor change, this immediately is reflected by the production line, it is the condition that arrangement of circulation is done.
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PL/SQL
Reading: Tweet l s queue/cue l
Full spelling: Procedural Language Extensions to SQL
Field:
Software > database > PL/SQL
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With the programming language which the Oracle corporation developed, it has the kind of specification which combines procedure type programming language to SQL which is standard of database query language.
It is database management system of the same company, you use combining with “Oracle,” you can develop database application combining the description of the processing with programming language and the search of the database which is in accordance with SQL command and the renewal etc of the data.
High speed as for the program whose processing is necessary, it is possible, to retain inside the system as a In addition, in order to be easy to call the strike addition program from outside, object direction development has become possible by packaging.
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Pmail <P mail>
Field:
Portable telephone > PHS > Pmail
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The letter message switching service which the DDI pocket offers with the PHS net of the respective company. If it can exchange the message to maximum of 20 letters, to the P mail corresponds sending and receiving it is possible from by any kind of terminal. With the main point which calls beeper, it is possible to transmit from also PHS and the like of the general joining telephone and the public telephone, the portable telephone and other companies, through P mail center. It expresses letter combining two numbers, alphanumeric and half angle [kana], can use the half angle sign. It is possible also to transmit simultaneously to the group of partners by the fact that it turns a dial in exclusively assigned number. Those which expand the function of the P mail, can
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Pmail DX <P mail DX>
Field:
Portable telephone > PHS > Pmail DX
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The e-mail sending and receiving service which the DDI pocket offers with the PHS net of the respective company. It compares with the P when mail, you can use Chinese character and hiragana, the number of letters at when transmitting half angle approximately 2000 letters, when receiving to approximately 5000 letters becoming available, efficiency is strengthened in the reaching and substantial. In addition, name of the “P mail” is entitled, but as for the substance because it is e-mail sending and receiving service, also the personal computer and the portable telephone etc which are connected to Internet exchange of the mail are possible. By way of center basically, but between H " and the letter telephone and the P mail DX corresponding terminal it is possible also sending and receiving to do the mail directly between the terminals. In this case, attaching arrival melody, and the like it is possible to transmit. Furthermore, while it is telephone call state the kyat which does the exchange of letter message there is also a function, improvement is added with also the functional aspect.
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