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www.vivotek.com

(r/w)

characters.

provider
<blank>

passwordkey
(r/w)

Text string shorter than 20
characters.

Your password or key to login ddns service
provider
<blank>

update
(w)

0, 1

Update the above ddns settings to take
effect

Group: UPNP

NAME

VALUE

DESCRIPTION

enable
(r/w)

0, 1

Enable or disable the UPNP presentation
service.
<1>

Group: UPNPfor

NAME

VALUE

DESCRIPTION

enable
(r/w)

0, 1

Enable or disable the UPNP port forwarding
service.
<0>

Group: App

NAME

VALUE

DESCRIPTION

scriptname
(r)

File name of script
<script.vssx>

Disable script

enablescript
(r/w)

Enable script

Group: Syslog

NAME

VALUE

DESCRIPTION

disable remote log

enableremotelog
(r/w)

enable remote log

User's Manual -

VIVOTEK - A Leading Provider of Multimedia Communication Solutions

Содержание IP7132

Страница 1: ...IP Surveillance IP7132 3GPP ...

Страница 2: ...ase Date 2007 11 16 Manual Revision 2 0 Web Site www vivotek com Email technical vivotek com sales vivotek com Made in Taiwan 2007 VIVOTEK INC All rights reserved User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 3: ...duct is used properly as intended The Network Camera is a network device and its use should be straightforward for those who have basic network knowledge The Troubleshooting chapter in the Appendix provides remedies to the most common errors in set up and configuration You should consult this chapter first if you run into a system error The Network Camera is designed for various applications inclu...

Страница 4: ...ug in 11 Primary user s capability 12 Main Screen with Camera View 12 Digital Zoom 13 Snapshot 13 Client settings 14 Digital output 16 Administrator s capability 17 Fine tuning for Best Performance 17 Opening accounts for new users 20 Build a security application 21 Software revision upgrade 22 Definitions in Configuration 23 System parameters 25 Security settings 26 Network settings 27 Network ty...

Страница 5: ...ital input 42 Send out the snapshot while motion detection 42 Sequential operation 43 Method for sending snapshot 43 Video clip 45 Weekly schedule 45 Video clip file name prefix 45 Video clip max file size 45 Digital input 45 Send out the video clip while motion detection 45 Sequential operation 46 Method for sending snapshot 46 Digital output 48 Weekly schedule 48 Digital input 48 Trigger digital...

Страница 6: ...nds of the Network Camera 54 Get server parameter values 54 Set server parameter values 55 Available parameters on the server 57 Application page CGI command 67 Capture single snapshot 68 Account management 69 System logs 70 Configuration file 71 Upgrade firmware 71 D Technical specifications 73 C User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 7: ... 886 2 82455282 F 886 2 82455532 Package Contents IP7132 Power adapter Camera stand Antenna Software CD Quick installation guide Warranty card User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 8: ...ke sure the Ethernet is firmly connected to a switch hub After attaching the Ethernet cable plug in the power adapter If the LED turns out to be steady blue go to next paragraph Software installation If the Ethernet is not available Network Camera will Connect the power adapter jack to the Network Camera before plugging in to the power socket This will reduce the risk of accidental electric shock ...

Страница 9: ...use Installation Wizard program included in the product CDROM to find the location of the Network Camera There may be many Network Cameras in the local network Users can differentiate the Network Cameras with the serial number The serial number is printed on the labels on the carton and the back of the Network Camera body Please refer to the user s manual of Installation Wizard for detail User s M...

Страница 10: ...the Network Camera restore the factory settings following the steps in the Troubleshooting chapter of the Appendix Add Password to prevent Unauthorized Access The default Administrator s password is blank and the Network Camera initially will not ask for any password The Administrator should immediately implement a new password as a matter of prudent security practice Once the Administrator s pass...

Страница 11: ...quest a username and password Upon successful authentication the following figure is displayed The foreground is the login window and the background shows the message if authentication fails The user may check the option box to save the password for future convenience This option is not available to the Administrator for obvious reason User s Manual 10 VIVOTEK A Leading Provider of Multimedia Comm...

Страница 12: ...ghest security level is set the computer may prohibit any installation and execution attempt This plug in has been registered for certificate and is used to display the video in the browser Users may click on to proceed If the web browser does not allow the user to continue to install check the Internet security option and lower the security levels or contact your IT or networking supervisor for h...

Страница 13: ...two parts Configuration functions The camera can be configured using these user interfaces Camera View What the camera sees Click on the configuration link to the left of the image window to enter the configuration page User s Manual 12 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 14: ...Uncheck Disable digital zoom and use the slider control to change the zoom factors Snapshot Click on Snapshot web browser will pop up a new window to show the snapshot Users can point at the snapshot and click the right button of mouse to save it 1 2 3 13 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 15: ...in has been registered for certification and can be used to change the parameters at the client s site The user may click on to install the plug in If the web browser does not allow the user to complete the installation check the Internet security to lower the security level or contact your IT or networking supervisor User s Manual 14 VIVOTEK A Leading Provider of Multimedia Communication Solution...

Страница 16: ...and produces a more accurate video display The downside with this protocol is that the real time effect is worse than that with the UDP protocol If no special need is required UDP protocol is recommended Generally speaking the client s choice will be in the order of UDP Ш TCP After the Network Camera is connected successfully Protocol Option will indicate the selected protocol The selected protoco...

Страница 17: ...ain name or the original IP address of the Network Camera Digital output Click on ON the digital output of the Network Camera will be triggered Or Clicking on OFF can let the digital output turn into normal state User s Manual 16 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 18: ... rate with the best video quality and at the lowest network bandwidth as possible The three factors Maximum frame rate Constant bit rate and Fix quality on the Audio and Video Configuration page are correlative to allow for achieving the best performance possible 17 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 19: ...better video quality and the human eyes cannot readily detect the differences between those of 20 25 or 30 frames per second If your network bandwidth is below 512 Kbps set the Fix bit rate according to your bandwidth and try to get the best performance by fine tuning with the Maximum frame rate In a slow network greater frame rate results in blur images Another work around is to choose 160x120 in...

Страница 20: ...r than setting Fix bit rate You can also fix the bandwidth according to your actual network speed and adjust the frame rate Start from 30 fps down for best results but not below 15 fps If the image qualities are not improved select a lower bandwidth setting 19 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 21: ... necessary to assign a password if the Network Camera is intended to be accessed by others Type a new word twice in Ϥ 1 to enable protection This password is used to identify the administrator Then add an account with user name and password for your friends in Ϥ 2 Network Camera can provide twenty accounts for your valuable customers or friends You may delete some users from Ϥ 3 1 2 3 User s Manua...

Страница 22: ...ine tune using the Sensitivity and Percentage fields to best suit the camera s environment Higher Sensitivity detects the slighter motion Higher Percentage discriminates smaller objects 8 Clicking on Save enables the activity display Green means the motion in the window is under the watermark set by Administrator and red means it is over the watermark 9 Click on Application at the left column 10 C...

Страница 23: ...iate product folder 2 Run the Upgrade Wizard and proceed following the prompts Refer to the instructions of the Upgrade Wizard for details 3 Or upgrade firmware from HTTP web page directly 3 The whole process will finish in a few minutes and it will automatically restart the system If power fails during the writing process of Flash memory the program in the memory of the Network Camera may be dest...

Страница 24: ... texts are the specific phrases on the Option pages The Administrator may type the URL below the figure to directly enter the frame page of configuration If the Administrator also wants to set certain options through the URL read the reference appendix for details url http Network Camera setup config html 23 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 25: ...ame or original IP address of the Network Camera url http Network Camera setup system html Network Camera is the domain name or original IP address of the Network Camera User s Manual 24 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 26: ...erver over the Internet whenever the Network Camera starts up It will fail if the assigned time server cannot be reached NTP server Assign the IP address or domain name of the time server Leaving the text box blank connects the Network Camera to the default time servers Time zone Adjust the time with that of the time servers for local settings Update interval Select hourly daily weekly or monthly ...

Страница 27: ...new password for access Add user Type the new user s name and password and press to insert the new entry The new user will be displayed in the user name list There is a maximum of twenty user accounts Manager user Pull down the user list to find the user s name and press to complete url http Network Camera setup security html Network Camera is the domain name or original IP address of the Network ...

Страница 28: ...o the Network Camera if the IP address is forgotten or using the UPnP function provided by the Network Camera MS Windows XP provides UPnP function at My Network Place IP address This is necessary for network identification Subnet mask This is used to determine if the destination is in the same subnet The default value is 255 255 255 0 Default router This is the gateway used to forward frames to de...

Страница 29: ...n the Administrator changes the HTTP port of the Network Camera whose IP address is 192 168 0 100 from 80 to 8080 the users must type in the web browser http 192 168 0 100 8080 instead of http 192 168 0 100 RTSP Streaming Access name This is the access URL for making connection from client software Using rtsp ip address access name to make connection RTSP port This can be other than the default Po...

Страница 30: ...otek com url http Network Camera setup network html Network Camera is the domain name or original IP address of the Network Camera 29 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 31: ... setting for the selected Access Point In Ad Hoc mode the channel must be manually set to the same channel for each wireless adapter The default channel setting depends on the installed region TX rate This field is for selecting the maximum transmission rate on the network The default setting is auto that is the Network Camera will try to connect to the other wireless device with highest transmitt...

Страница 32: ...ngth of the key is 8 63 Some invalid settings may cause the system failing to respond Change the configuration only if necessary and consult with your network supervisor or experienced users for correct settings Once the system has lost contact refer to Appendix A for reset and restore procedures 31 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions After wireless confi...

Страница 33: ... 32 www vivotek com User s Manual 32 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 34: ...rname E mail The Username or E mail field is necessary for logging in the DDNS server or notify the User of the new IP address Note when this field is input as Username the following field must be input as Password Password Key Please input the password or key to get the DDNS service Save Click on this button to save current settings for the DDNS service and UPnP function url http Network Camera s...

Страница 35: ...oth Allow List and Deny List consist of a list of IP ranges If you want to add a new IP address range type the Start IP Address and End IP Address in the text boxes and click on the Add button If you want to remove an existing IP address range just select from the pull down menu and click on the Delete button Both the Allow List and Deny List can have 20 entries url http Network Camera setup acces...

Страница 36: ...ht There are three dependent parameters provided for video performance adjustment key frame interval Max frame rate This limits the maximal refresh frame rate which can be combined with the Video quality to optimize bandwidth utilization and video quality Choose Constant bit rate If the user wants to fix the bandwidth utilization regardless of the video quality choose Fixed quality and select the ...

Страница 37: ...udio settings Use Switch internal or microphone to set up the source of audio input mute Audio mute Boost external microphone input Enhance the gain of the external microphone Internal input Gain Modify the gain of the internal audio input Audio type Select audio codec AAC or GSM AMR and the bit rate User s Manual 36 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 38: ... Contrast Hue and Saturation for video compensation Each field has eleven levels ranged from 5 to 5 In Brightness and Contrast fields the value 0 indicates auto tuning The user may press to fine tune the image When the image is O K press to set the image settings Click on this to recall the original settings without incorporating the changes 37 User s Manual VIVOTEK A Leading Provider of Multimedi...

Страница 39: ...l server Recipient email address The email address of the recipients for snapshots or log file Multiple recipients must be separated by semicolon FTP Built in FTP server port number This can be other than the default port 21 The user can change this value from 1025 to 65535 After the changed the external FTP client program must change the server port of connection accordingly There are two externa...

Страница 40: ...al FTP server The string must conform to that of the external FTP server Some FTP servers cannot accept preceding slash symbol before the path without virtual path mapping Refer to the instructions for the external FTP server for details The folder privilege must be open for upload url http Network Camera setup mailftp html Network Camera is the domain name or original IP address of the Network Ca...

Страница 41: ... monitoring level and a red bar means the image variation is over monitoring level When the bar goes red the detected window will also be outlined in red Going back to the homepage the monitored window is hidden but the red frame shows when motion is detected Window Name The text will show at the top of the window Sensitivity This sets the endurable difference between two sequential images Percent...

Страница 42: ...Sun Sat Select the days of the week to perform the application Time show Always or input the time interval Trigger Event trigger type has digital input motion detection and sequential Send After Event has been triggered IP cam will send something by email ftp or trigger digital output 41 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 43: ...indows which need to be monitored If motion detection has not been set up undefined will be shown instead of the window title If this happens clicking on Motion detection and a note will show to direct the User to the configuration page for motion detection Send pre event image s The number of pre snapshots will be captured and send when a condition is triggered Send post event image s The number ...

Страница 44: ...server with the file name defined in the next option This can also be used to refresh the captured images stored in the external web server to build creative homepages FTP put snapshots with date and time suffix This option sets up the snapshot capture date and time which can be used to easily differentiate the snapshot file names in the sequential operation For instance prefix 20030102 030405 jpg...

Страница 45: ... 44 www vivotek com User s Manual 44 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 46: ...ion There are three windows for motion detection each can be assigned a name Select the windows which need to be monitored If motion detection has not been set up undefined will be shown instead of the window title If this happens clicking on Motion detection and a note will show to direct the User to the configuration page for motion detection Delay second s before detecting next event Set the ti...

Страница 47: ...TP server with the file name defined in the next option This can also be used to refresh the captured images stored in the external web server to build creative homepages FTP put snapshots with date and time suffix This option sets up the snapshot capture date and time which can be used to easily differentiate the snapshot file names in the sequential operation For instance prefix 20030102 030405 ...

Страница 48: ... 47 www vivotek com 47 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 49: ...hree windows for motion detection each can be assigned a name Select the windows which need to be monitored If motion detection has not been set up undefined will be shown instead of the window title If this happens clicking on Motion detection and a note will show to direct the User to the configuration page for motion detection Delay second s before detecting next event Set the time delay before...

Страница 50: ... 49 www vivotek com 49 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 51: ...m remote machine Or you can use some software on Windows which is compliant to RFC 3164 Check Enable remote log and input the IP address and port number of the log server to enable the remote log facility In the Current log it displays the current system log file The content of the log provides useful information about configuration and connection after system boot up User s Manual 50 VIVOTEK A Le...

Страница 52: ...stem parameters Click on this link on the configuration page to view the entire system s parameter set The content is the same as those in CONFIG INI 51 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 53: ...n page to restore the factory default settings Any changes made so far will be lost and the system will be reset to the initial factory settings The system will restart and require the installer program to set up the network again upgrade firmware Select the firmware file and click upgrade button User s Manual 52 VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 54: ...Network Camera It is used to reset the system or restore the factory default settings Sometimes resetting the system sets the system back to normal state If the system problems remain after reset restore the factory settings and install again RESET Click on the button 53 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions Status LED Color Description Blinking red Power i...

Страница 55: ... easily integrated through convenient URLs This section lists the commands in URL format corresponding to the basic functions of the erase Network Camera Get server parameter values Note This request require administrator access Method GET POST Syntax http servername cgi bin admin getparam cgi parameter parameter where the parameter should be group _ name or group name If you do not specify the an...

Страница 56: ...ter value r n parameter pair length is the actual length of content Example request IP address and it s response Request http 192 168 0 123 cgi bin admin getparam cgi network_ipaddress Response HTTP 1 0 200 OK r n Content Type text html r n Context Length 33 r n r n network ipaddress 192 168 0 123 r n Set server parameter values Note This request require administrator access Method GET POST Syntax...

Страница 57: ...rameter it will redirect to an empty page note The return page can be a general HTML file htm html or a Vivotek server script executable vspx file It can not be a CGI command It can not have any extra parameters This parameter must be put at end of parameter list Return HTTP 1 0 200 OK r n Content Type text html r n Context Length length r n r n parameter pair where parameter pair is parameter val...

Страница 58: ... 40 characters host name of server Wireless Network Camera 0 Do not turn off the led indicator ledoff r w 1 Turn off the led indicator yyyy mm dd year month and date separated by slash keep keep date unchanged date r w auto Using NTP to sync date time automatically hh mm ss hour minute and second separated by colon keep keep date unchanged time r w auto Using NTP to sync date time automatically nt...

Страница 59: ...seconds 0 65535 Restart the server after value seconds reset w 1 Not restart the server 0 Using the profile of viewing by computer viewmode r w 1 Using the profile of viewing by mobile phone Group Security NAME VALUE DESCRIPTION username_ 1 20 r w text string shorter than 16 characters change user name blank userpass_ 0 20 r w text string shorter than 14 characters change user s password The UserP...

Страница 60: ...er 192 168 0 99 subnet r w restart IP address subnet mask 255 255 255 0 router r w restart IP address default gateway blank dns1 r w restart IP address primary DNS server blank dns2 r w restart IP address secondary DNS server blank smtp1 r w domain name or IP address string shorter than 40 characters primary SMTP server blank mailto1 r w string shorter than 80 characters mail recipient address bla...

Страница 61: ...mary FTP server blank ftpport1 r w positive number less than 65535 primary FTP port 21 ftpuser1 r w text string shorter than 63 characters user name for primary FTP server blank ftppass1 r w text string shorter than 15 characters password for primary FTP server blank ftpfolder1 r w text string shorter than 40 characters upload folder in primary FTP server blank 1 Enable passive mode of primary FTP...

Страница 62: ...ber less than 65535 audio Channel port for RTP 5556 accessname r w text string shorter than 20 characters RTSP access name live sdp Group IPFilter NAME VALUE DESCRIPTION allowstart_ 0 9 r w 1 0 0 0 255 255 255 255 Allowed starting RTSP connection IP address 1 0 0 0 allowend_ 0 9 r w 1 0 0 0 255 255 255 255 Allowed ending RTSP connection IP address 255 255 255 255 denystart_ 0 9 r w 1 0 0 0 255 255...

Страница 63: ...ome color r w 1 color 0 fix bit rate quality r w 1 fix quantization 1 lowest quality of video 2 lower quality of video 3 normal quality of video 4 higher quality of video quant r w 5 highest quality of video 20000 set bit rate to 20K bps 30000 set bit rate to 30K bps 40000 set bit rate to 40K bps 50000 set bit rate to 50K bps 64000 set bit rate to 64K bps 128000 set bit rate to 128K bps 256000 set...

Страница 64: ...t maximum frame rate to 25 fps maxframe r w 30 for 60Hz only set maximum frame rate to 30 fps 50 synchronize with 50Hz utility mode r w in CMOS version only 60 synchronize with 60Hz utility 0 auto white balance 1 fixed indoor 3200K 2 fixed fluorescent 5500K whitebalance r w in CMOS version only 3 fixed outdoor 5500K 1 flip image flip r w 0 normal image 1 mirror image mirror r w 0 normal image 1 Ov...

Страница 65: ... AMR bitrate to 7 95K bps 10200 set AMR bitrate to 10 2K bps amrbitrate r w 12200 set AMR bitrate to 12 2K bps Group Image NAME VALUE DESCRIPTION brightness r w 5 5 Adjust brightness of image according to mode settings 0 saturation r w 5 5 Adjust saturation of image according to mode settings 0 contrast r w 5 5 Adjust contrast of image according to mode settings 0 hue r w 5 5 Adjust hue of image a...

Страница 66: ...ent of motion detection window 0 winsensitivity_ 0 2 r w 0 100 Sensitivity of motion detection window 0 update w 1 Update the above motion detection settings to take effect Group DDNS NAME VALUE DESCRIPTION enable r w 0 1 Enable or disable the dynamic dns 0 provider r w 1 6 dyndns org dynamic dyndns org custom tzo com dhs org safe100 net dyn interfree it 1 hostname r w Text string shorter than 127...

Страница 67: ...ble the UPNP presentation service 1 Group UPNPfor NAME VALUE DESCRIPTION enable r w 0 1 Enable or disable the UPNP port forwarding service 0 Group App NAME VALUE DESCRIPTION scriptname r text string shorter than 255 characters File name of script script vssx 0 Disable script enablescript r w 1 Enable script Group Syslog NAME VALUE DESCRIPTION 0 disable remote log enableremotelog r w 1 enable remot...

Страница 68: ...vilege Method GET POST Syntax For snapshot http servername cgi bin admin gen new eventd conf cgi prefix_app_index _snapshot_enable value prefix_app_index _weekday value prefix_app_index _time_method value prefix_app_index _begin_time value prefix_app_index _end_time value prefix_app_index _prefix value prefix_app_index _trigger_type value prefix_app_index _md_win value prefix_app_index _md_prenum ...

Страница 69: ...pp_index _md_win value prefix_app_index _md_delay value prefix_app_index _sq_interval value prefix_app_index _send_method value prefix_app_index _ftp_suffix value Return HTTP 1 0 200 OK r n Content Type text plain r n Content Length length r n r n depends on method value If method get method set tue value r n wed value r n Else if method normal Application page contents parameter Value description...

Страница 70: ...ield is necessary It will use default value of other fields if not specified method delete Remove an account from server When using this method username field is necessary and others are ignored 69 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions 69 Syntax http servername cgi bin video jpg Server will return the most up to date snapshot in JPEG format The size and qua...

Страница 71: ... name prefix for both event and sequential operation motion Set trigger by motion detect trigger_type sequential Snapshot Videoclip sequentially maxsize 0 500 Video clip max file size md_win 0 1 2 The array indicate which motion windows are used md_prenum 1 5 The numbers of snapshot before event md_postnum 1 5 The numbers of snapshot after event md_delay 1 999 The delay seconds for detecting next ...

Страница 72: ... the following values Ex A user with configure access can be assigned privilege as privilege conf privilege conf configuration privilege return return page Redirect to the page return page after the parameter is assigned The return page can be a full URL path or relative path according the the current path If you omit this parameter it will redirect to an empty page System logs Note This request r...

Страница 73: ...e cgi bin admin configfile cgi Server will return the up to date configuration file Return HTTP 1 0 200 OK r n Content Type text plain r n Content Length configuration file length r n r n configuration data r n Upgrade firmware Note This request requires administrator privilege Method POST Syntax http servername cgi bin admin upgrade cgi User s Manual 72 VIVOTEK A Leading Provider of Multimedia Co...

Страница 74: ...rn return page r n r n multipart encoded form data Server will accept the upload file named file name to be upgraded the firmware and return with return page if indicated 73 User s Manual VIVOTEK A Leading Provider of Multimedia Communication Solutions ...

Страница 75: ...EG 4 streaming over UDP TCP ir HTTP MPEG 4 multicast streaming Event Management Multiple window video motion detection 1 digital input and 1 digital output Event notification using HTTP SMTP of FTP Audio Supports GSM AMR Supports AAC compression Supports audio mute Bit rate GSM AMR 4 75k 12 2k ACC 15k 128k Security Multi level user access IP address filtering LED indicator Bi color LED system stat...

Страница 76: ...BTAINED FROM MPEG LA LLC SEE HTTP WWW MPEGLA COM AMR NB Standard THIS PRODUCT IS LICENSED UNDER THE AMR NB STANDARD PATENT LICENSE AGREEMENT WITH RESPECT TO THE USE OF THIS PRODUCT THE FOLLOWING LICENSORS PATENTS MAY APPLY TELEFONAKIEBOLAGET ERICSSON AB US PAT 6192335 6275798 6029125 6424938 6058359 NOKIA CORPORATION US PAT 5946651 6199035 VOICEAGE CORPORATION AT PAT 0516621 BE PAT 0516621 CA PAT ...

Страница 77: ...by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the seperation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician f...

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