device that converts digital data to analog signal

... It is an operation that is basic to digital signal processing and digital communication. • Through the use of sampling, an analog signal is converted to its digital form. • To obtain either form ... analog signal that are usually uniformly spaced in time. Sampling is usually described in time domain. To get back the original analog signal we have to convert back the sampled signal to ... Introduction to Telecommunications, Winter 2000 Lecture-22 Digital Transmission Digital Transmission of Analog Data (Baseband Transmission): • Analog voice data must be translated into a series...

Ngày tải lên: 09/12/2013, 16:15

Ngày tải lên: 03/07/2014, 16:06

Ngày tải lên: 10/07/2014, 17:20

... joining into WTO. Any countries which want to mix with this global playing-field WTO,haveto make the commitments in accordance with WTO’s regulation.And Viet Nam do,too .To achieve today’s results,Viet ... order to answer for this question,Today,we all together would like to talk about the bilateral and multilateral commitment that Viet Nam made to participate in WTO. I. ACCESSION OF VIET NAM TO WTO First,I’d ... regime to conform to WTO requirements, and looked forward to working actively with Viet Nam towards this objective. 2.Process into WTO Viet Nam has been conducting negotiations on its WTO entry...

Ngày tải lên: 12/04/2013, 22:00

... him how to move his tongue in different directions. Start with side to side. Once he’s got that movement, go to up-and-down move- ments. If you can curl your tongue, add that to his repertoire. I ... my tongue pops out. I push my nose to one side, and my tongue goes to that side. When I push my nose to the other side, my tongue follows. I push my nose in again, and my tongue goes back into ... their interest in attending to these details as they grow. Perfect Rattles If you haven’t switched over to digital photography or you’re willing to go to a photo store and get its used film canisters,...

Ngày tải lên: 17/08/2013, 08:52

Ngày tải lên: 29/09/2013, 20:20

... limiter Error Detector: The processed signal is compared with a sample of the signal source. For each data bit that does not match, a 10s pulse appears at the ERROR connector. Measuring the ... the auto level is set to OFF. The module is monitored using the oscilloscope. Figure 5 A (a) Base Band transmission The functions of the different modules are explained below: Digital Signal ... detection process. This signal is useful in accurately measuring errors in detected data due to a communications channel. Figure 5 A (b) Block parameters digital signal source Summer: Page...

Ngày tải lên: 19/10/2013, 17:15

... output of the digital summer as well as that of the Digital Signal Source was observed on the oscilloscope. The graphs are as shown. It is seen that there is no change in the output signal when ... The Objectives of this laboratory are: 1. To examine the frequency spectrum of an FSK signal. 2. To examine the correlation between two FSK signals. 3. To implement and investigate a coherent ... The input signal parameters A. The circuit was set up according to figure 6A shown below. It is a basic assembly to generate a FSK signal. Figure 6a Spectrum of a FSK signal –...

Ngày tải lên: 23/10/2013, 15:15

... at Analog Devices, Inc., of Norwood, MA. IMS’s pro- posal was therefore of interest to product design, marketing and application support engineers at Analog. IMS’s CEO travelled to Boston to ... range from directories/databases of domain experts and key knowledge workers in organizations, to systems that purport to capture, store, and transfer the knowledge of organizational actors for access ... CD-ROM format for distribution to Analog s customers. The parametric search facility was first available on Analog Devices’ CD-ROM catalogue; subse- quently, the system was available to sales engineers over...

Ngày tải lên: 20/12/2013, 19:15

... "Customers to List Orders For:" ComboBox Name cboCustomers DataSource dsCustomerList.Customers DisplayMember CompanyName ValueMember CustomerID DataGrid Name dgOrders DataSource ... (CustomerID = ?) ORDER BY OrderDate DataSet Name dsOrdersForCustomer DataSetName dsOrdersForCustomer 3. Tip You will want to create the OleDbDataAdapter controls using the Data Adapter ... Name odaCustomerList SelectCommand OleDbSelectCommand1 CommandText SELECT CustomerID, CompanyName FROM Customers DataSet Name dsCustomerList DataSetName dsCustomerList OleDataAdapter...

Ngày tải lên: 24/12/2013, 06:17

... stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together, ... User datagram protocol (UDP) is a connectionless protocol (one in which the host can send a message without establishing a connection with the recipient) that, like transmis- sion control protocol ... including Telefunken’s TOIM4232 and TOIM3232. At a minimum, a current-limiting resistor in series with the IRED and a VCC bypass capacitor are the only external compo- nents required to implement a complete...

Ngày tải lên: 24/12/2013, 14:16

... a signal produced by one process, an “input signal, ” to produce a new signal, an “output signal, ” is generally referred to as signal processing, a topic easily illustrated by examples. • A time ... limits the number of topics that can be covered in a typical course — in particular, the applications that are so important to engineers tend to be neglected. In addition, too much time can be ... amplifiers of the powerful receivers used to retrieve the signals. By suitably preparing the signals prior to transmission, by suitable filtering of the received signal plus noise, and by suitable decision...

Ngày tải lên: 16/01/2014, 16:33

... Creating an XML File That Shows Changes Made to a DataSet Problem When you use the GetXML( ) method of the DataSet, you may see only the current values in the DataSet. You want to get the original ... the first row, and adds a row to the end of the Categories DataTable DisplayDiffGram( ) This method outputs the DiffGram for the DataSet to both a file and to a textbox on the form. The ... a row is added to the end of the DataTable. After these modifications, the DiffGram for the DataSet is: <diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1">...

Ngày tải lên: 21/01/2014, 11:20

... tool to create data- binding [ Team LiB ] Recipe 7.1 Binding Simple Data to Web Forms Controls P roblem You need to bind a field of data to a server-side control. S olu t ion Use the DataBind( ... cmd.ExecuteScalar().ToString( ); conn.Close( ); } return companyName; } D iscussion Simple data binding binds an ASP.NET web control property to a single value in a data source. The ... (customerIdTextBox.Text != "") { // Create a command to retrieve the company name for the // user-specified customer ID. String sqlText = "SELECT CompanyName FROM Customers...

Ngày tải lên: 26/01/2014, 10:20

... Complex data- binding properties Property Description DataSource Gets or sets the data source that the control is displaying data for. Valid data sources include DataTable, DataView, DataSet, DataViewManager, ... "CategoryName"; categoriesListBox.DataBind( ); } Discussion Complex data binding describes binding a multi-record control to multiple records in a data source. The DataGrid, DataList, and ListBox controls ... DataViewManager, or any object that implements the IEnumerable interface. DataMember Gets or sets the table in the data source to bind to the control. You can use this property if the data source contains...

Ngày tải lên: 26/01/2014, 10:20

... { dataList.DataSource = CreateDataSource( ); dataList.DataKeyField = "Id"; dataList.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); ... DataReader, DataSet, DataTable, or DataView—any class that implements the IEnumerable interface can be bound. The easiest way to create a DataList control is to drag the DataList control onto the ... time. CreateDataSource( ) This method fills a DataTable with the TBL0703 table and stores the DataTable to a Session variable to cache the data source for the DataList. UpdateDataSource( )...

Ngày tải lên: 26/01/2014, 10:20

... data. The DataGrid must be bound to a data source such as a DataReader, DataSet, DataTable, or DataView. Any class that implements the IEnumerable interface can be bound. The easiest way to ... // Bind the data view to the data grid. dataGrid.DataSource = dv; dataGrid.DataBind( ); } Discussion The DataGrid Web Form control retrieves tabular information from a data source and ... dataGrid.CurrentPageIndex = e.NewPageIndex; // Bind the data view to the data grid. dataGrid.DataSource = dv; dataGrid.DataBind( ); } private void dataGrid_SortCommand(object...

Ngày tải lên: 26/01/2014, 10:20

... A L O G Analog Signal Conditioners M I C R OA N A L O G DC/DC select M I C R O A N A L O G THERMO select M I C R O A N A L O G PT100 select M I C R O A N A L O G sets a new standard in signal ... -off frequency General data Supply voltage Power consumption Operating temperature Storage temperature Approvals Dimensions L/H/W mm (in.) Coordination of insulation acc. to DIN EN50178, 04/98 Rated ... coefficent Response time General data Supply voltage Power consumption Operating temperature Storage temperature Approvals Dimensions L/H/W mm (in.) Coordination of insulation acc. to DIN EN50178, 04/98 Rated...

Ngày tải lên: 14/02/2014, 16:56

Ngày tải lên: 15/02/2014, 13:20

Ngày tải lên: 19/02/2014, 16:20