LG Electronics VX10 manual

P / N : MMBB0064201(1. 3 ) DATE : 2002.0 9 . 11 User Guide Manual d el Usu a rio V X 1 0 U S E R G U I D E V X 1 0 G u í a d e l U s u a r i o[...]

Contents LIMITED WARRANTY STATEMENT 1 Subject 4 Introduction 6 Highlights 6 Important Information 7 Check Accessories 7 Before You Start 8 Safety Instructions 8 Chapter 1. Getting Started 11 Cautions 11 Using the Battery Pack 12 Phone Components 16 Phone Overview 17 Onscreen Icons 19 Entering Information Using T9 Text Input 20 Chapter 2. Basic Func[...]

Power Save Mode 31 Signal Strength 31 Caller ID Display 32 Speed Dialing 33 Caller ID 33 Phone Book Features 34 Chapter 3. Menu Features 43 General Guidelines to MENU Access and Settings 43 SOUND 44 DISPLAY 50 FEATURES 54 SYSTEM 59 SECURITY 62 Chapter 4. PIM Features 66 PHONE BOOK 66 CALL HISTORY 70 SCHEDULER 73 WAKE UP 79 CALCULATOR 80 Chapter 5. [...]

LIMITED W ARRANTY ST A TEMENT 1. WHAT THIS WARRANTY COVERS: LG offers you a limited warranty that the enclosed subscriber unit and its enclosed accessories will be free from defects in material and workmanship, according to the following terms and conditions: (1) The limited warranty for the unit and enclosed accessories shall be a period of one (1[...]

2 How to Buy Accessories LG mobile phones and accessories can be purchased via our web site at: www.lgmobilephones.com or by visiting your local wireless retailer. 3 (6) This limited warranty is in lieu of all other warranties, express or implied either in fact or by operations of law, statutory or otherwise, including but not limited to any implie[...]

5 The Cellular and PCS CDMA networks consist of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS (Base station Transmission System), and MS (Mobile Station). The following table lists some major CDMA Standards. TSB -74: Protocol between an IS-95A system and ANSI J-STD-008 1xRTT system receives subscribers in wireless section twice [...]

Important Information This user guide provides important information on the use and operation of your VX10 phone. Please read all the information carefully prior to using the phone for best performance and to prevent any damage to or misuse of the phone. Any unapproved change or modification will void your warranty. Check Accessories Your mobile ph[...]

9 CAUTION Use only the supplied and approved antenna. Use of unauthorized antennas or modifications could impair call quality, damage the phone, void your warranty and/or result in violation of FCC regulations. Do not use the phone with a damaged antenna. If the damaged antenna comes into contact with the skin, a minor burn may result. Contact your[...]

FCC Part 15 Class B Compliance This device and its accessories comply with part 15 of FCC rules. Operation is subject to the following two conditions: (1) This device and its accessories may not cause harmful interference, and (2) this device and its accessories must accept any interference received, including interference that cause undesired oper[...]

11 G e tti n g S ta r te d Chapter 1. Getting Started Cautions Using the phone near receiving equipment (i.e., TV or radio) may cause interference. Keep your phone in a safe place when not in use. Only use the batteries, antennas and chargers provided by LG. Using unauthorized accessories could void your warranty. Only authorized personnel should s[...]

13 G e tti n g S ta r te d 12 Battery Charge Level The battery charge level is shown at the top right of the LCD screen. When the battery charge level becomes low, the low battery sensor will alert you in three ways: sounding an audible tone, blinking the battery icon outline, and displaying LOW BATTERY WARNING! If the battery charge level becomes [...]

15 G e tti n g S ta r te d 14 Caring for the Battery 1. To recharge the battery, you do not need to wait until the battery is completely discharged. 2. U se only LG batteries and chargers specific to your model of phone. LG’s chargers are designed to maximize the battery life. 3. Do not disassemble or short-circuit the battery. 4. Keep the metal [...]

17 G e tti n g S ta r te d 16 Phone Overview 1. Cellcase Open the cellcase to answer an incoming call and close to end the call. 2. Message Key 3. Headset Jack 4. Get It Now Key 5. Side Keys Enables you to adjust key beep volume (in standby mode) and earpiece volume (during a call). When your phone rings press either side key to mute the ringer or [...]

19 G e tti n g S ta r te d 18 Onscr een Icons The phone screen displays several onscreen icons which appear when the phone is powered on. Displays the strength of the signal received by the phone and current signal strength is indicated by the number of bars displayed on the screen. No service The phone is not receiving a system signal. In use A ca[...]

21 G e tti n g S ta r te d 20 Input mode T9 Text Input provides five modes for entering text, numbers, special characters, and punctuation. T9En ( T9 ) Mode Type text using one keystroke per letter. The default is T9 mode. ABC ( Multi-tap ) Mode Use ABC mode to add words to the T9 database. 123 ( Numbers ) Mode Type numbers using one keystroke per [...]

23 G e tti n g S ta r te d 22 Using the NEXT Key After you have finished typing a word, if the word displayed is not the word you want, press to display additional choices. For example, follow these steps : 1. Press: . 2. Display: Good 3. Press: . 4. Display: Home, Gone, Hood...... Adding W ords to the T9 Database If a word is not in the T9 databas[...]

24 Examples Using ABC ( Multi-tap ) T ext Input Typing In ABC (Multi-tap) Mode To type a new message, follow these steps: 1. Press: Soft Key 2 to change letter case to ABC mode 2. Press: to change to ABC Caps Lock mode 3. Press: . 4. Display: LG[...]

25 B a si c Funct ions Chapter 2. Basic Functions T urning the Phone On and Off T urning the Phone On 1. Install a charged battery pack or connect the phone to an external power source such as the cigarette lighter adapter or car kit. 2. Press for a few seconds until the red light in the middle of the phone flashes. Fully extend the antenna for the[...]

27 B a si c Funct ions 26 Corr ecting Dialing Mistakes If you make mistakes while dialing a number, press once to erase the last digit entered or hold down for at least two seconds to delete all digits, or simply press Soft Key 2 Back to exit the dialing state. Receiving Calls 1 . When the phone rings, open the cellcase or if the cellcase is open, [...]

29 B a si c Funct ions 28 Call W aiting Your cellular service may offer a call waiting function. While a call is in progress, you may hear two beeps indicating another incoming call. When call waiting is enabled, you may put the active call on hold while you answer the other incoming call. Check with your cellular service provider for information a[...]

31 B a si c Funct ions 30 Power Save Mode When the phone is in an area without service for about 15 minutes, it stops searching for service and enters into Power Save Mode. When your phone activates this feature, Power Save is displayed on the screen. The phone automatically checks for service periodically or you can check manually by pressing any [...]

33 B a si c Funct ions 32 Speed Dialing ( see Making a call from Phone Book on page 38. ) Speed dialing is a convenient feature, which allows you to make phone calls quickly and easily. Your phone recalls the phone number from your personal directory, displays it briefly and then dials it. 1 . Enter memory location number 001 to 199 . 2. Press . Ca[...]

35 B a si c Funct ions 34 You also have the option to enter a specific three- digit memory location number. 5. Select your desired label types Home , Office , Mobile , Pager , Data / Fax using . 6. Enter a name for the phone number (up to 16 characters). If you do not want to enter a name, go to the next step. 7. You may select the desired ID ring [...]

37 B a si c Funct ions 36 Retrieving Phone Numbers Using Memory Location Number. From the initial display, press Soft Key 2 PIM and then select Find Entry. Enter the location number to be retrieved. To search for stored phone numbers, from the initial display enter a specific number(s) and a list containing that number(s) appears. If you want to ma[...]

39 B a si c Funct ions 38 Two-Touch Speed Dialing : This feature enables you to dial numbers in your phone book through two keys (for locations 10 to 99.) 1) Press the first digit. 2) Press and hold the key of the second digit. OR 1) Press the first and second digit, then press . Three-Touch Speed Dialing : This feature enables you to dial numbers [...]

41 B a si c Funct ions 40 5) Press Soft Key 1 Option and press Soft Key 1 Ok , the sub-menu will appear. Select Save on the sub- menu to save this number with pauses. 6) The phone will prompt you for the memory location where the number will be saved. Press Soft Key 1 Next to automatically store the number in the first available memory location. Yo[...]

42 3. Prepending a Stored Number Prepend can be used if you are out of your home system area and need to add the area code to an existing phone book number. When a phone book entry or message callback number shows up on the display, you can add to the beginning of the original number. However, you cannot edit the original number during Prepend. 1) [...]

43 Menu Fe at ur e s Chapter 3. Menu Features General Guidelines to MENU Access and Settings 1. Press Soft Key 1 Menu . Four menu items will appear on the display screen. 2. Press to go through the list of menu features. 3. Press the corresponding number to the menu item that you want to select. Then the sub-menu list will appear on the screen. 4. [...]

45 Menu Fe at ur e s 44 Ring T ype ( Menu ) To select a Ring Type. 1. Press Soft Key 1 Menu . 2. Press Ring Type . 3. Select one of six ring types Ring , Vibrate , Vib1+Ring , Vib2 +Ring , Vib3+Ring and Lamp with or . The number after Vib means the number of vibrations. 4. Then press Soft Key 1 Ok to save the ring type. Ring &V ib V ol. ( Menu [...]

47 Menu Fe at ur e s 46 Key V olume ( Menu ) To adjust the key beep volume. 1. Press Soft Key 1 Menu . 2. Press Key Volume . 3. Adjust the key volume with or . 4. Then press Soft Key 1 Ok to save the key volume. Ear V olume ( Menu ) To adjust the earpiece volume during a call, press the . 1. Press Soft Key 1 Menu . 2. Press Ear Volume . 3. Adjust t[...]

49 Menu Fe at ur e s 48 Alerts ( Menu ) Any of the four Alert options could be turned on or off. 1. Press Soft Key 1 Menu . 2. Press Alerts . Check each option and turn it off if not desired. 1) Fade ( Menu ) Sets an alert to inform you when you have lost a call or services. 2) Minute ( Menu ) Alerts you 10 seconds before the end of every minute du[...]

51 Menu Fe at ur e s 50 Contrast ( Menu Press one time, ) Using the Navigation Key, select the contrast setting using the scale of lightest to darkest. 1. Press Soft Key 1 Menu . 2. Press one time. 3. Press Contrast . 4. Adjust the contrast with or . 5. Then press Soft Key 1 Ok to save the contrast setting. Banner ( Menu Press one time, ) Enter the[...]

53 Menu Fe at ur e s 52 V ersion ( Menu Press one time, ) View the software and PRL version. 1. Press Soft Key 1 Menu . 2. Press one time. 3. Press Version . 4. Press Soft Key 1 Ok . My Phone # ( Menu Press one time, ) The number will be displayed on the screen. 1. Press Soft Key 1 Menu . 2. Press one time. 3. Press My Phone #. 4. Press Soft Key 1 [...]

55 Menu Fe at ur e s 54 Data Baud ( Menu Press two times, , ) This setting enables the subscriber terminal to set the data baud. 1. Press Soft Key 1 Menu . 2. Press two times. 3. Press Data Setting and press Date Baud . 4. Select an option, press Soft Key 1 Ok . Data Baud set 19,200 / 115,200 / 230,400 Data Baud needs to be set properly based on ca[...]

57 Menu Fe at ur e s 56 Auto Retry ( Menu Press two times, ) Set the length of time the phone waits before automatically redialing a number when the attempted call fails. 1. Press Soft Key 1 Menu . 2 . Press tw o ti mes a nd press Auto Retry . 3. Select an option and press Soft Key 1 Ok . Off / every 10 seconds / every 30 seconds / every 60 seconds[...]

59 Menu Fe at ur e s 58 SYSTEM ( Menu Press three times ) System Sel ( Menu Press three times, ) This function enables set up of the user ’ s mobile phone producer ’ s management environment. Leave this setting at the default unless you want to alter the system selection. (As instructed by your service provider.) 1. Press Soft Key 1 Menu . 2. P[...]

61 Menu Fe at ur e s 60 Serving Sys ( Menu Press three times, ) You can identify the channel number of System which is served and SID Number. This information is only for technical support. 1. Press Soft Key 1 Menu . 2. Press three times and press Serving Sys . 3. Press Soft Key 1 Ok . TTY Mode ( Menu Press three times, ) Users can attach a TTY dev[...]

63 Menu Fe at ur e s 62 Restrict ( Menu Press four times, ) To change your restrict. 1. Press Soft Key 1 Menu . 2. Press four times and press Restrict . 3. Enter the four-digit lock code. 4. Select Yes or No with or and then press Soft Key 1 Ok . If you set it to Yes you can only place calls to emergency numbers and phone numbers stored in the memo[...]

65 Menu Fe at ur e s 64 New Lock Code ( Menu Press four times, ) New Lock Code allows you to enter a new four-digit lock code number. This is the same number as the pin code. 1. Press Soft Key 1 Menu . 2. Press four times and press New Lock Code . 3. Then enter the four-digit lock code. 4. For confirmation, it will ask you to enter the new lock cod[...]

67 PI M Fe a t u r e s 66 Find Name ( PIM , ) To search for a phone number by name. 1. Press Soft Key 2 PIM . 2. Press Find Name . 3 . Enter the letter(s) that you want to search for (at least three letters are required for a quick search). Then press Soft Key 1 Find . A list of matching names is displayed. If the name is found, the name will be di[...]

69 PI M Fe a t u r e s 68 Find Email ( PIM , ) 1. Press Soft Key 2 PIM . 2. Press Find Email. 3. Enter the E-mail address you want to search for and press Soft Key 1 Find . If the E-mail address is found, the E-mail address will be displayed and if the E-mail address is not found, the message Entry Empty! will appear. Following the above message, i[...]

71 PI M Fe a t u r e s 70 Missed ( PIM Press one time, ) Allows you to view list of all missed calls. Maximum 10 numbers are possible. 1. Press Soft Key 2 PIM . 2. Select CALL HISTORY , Missed . 3. You may place a call by pressing . Works only in digital area and if it is not restricted. Recent Call History List Allows you to view the 30 most recen[...]

73 PI M Fe a t u r e s 72 SCHEDULER ( PIM Press two times ) Scheduler Functions Scheduler keeps your agenda convenient and easy to access. Simply store your appointments and your phone alerts you with a reminder of your appointment. You can also take advantage of the wake - up feature. If transmitting SMS or connecting UP during a call, at the pres[...]

75 PI M Fe a t u r e s 74 Add Event ( PIM Press two times, ) Allows you to input your schedule. If you input the time and memo, an alarm rings at the set time. 1. Press Soft Key 2 PIM . 2. Select SCHEDULER, Ad d Event . 3. Select the date using your keypad (refer to p74), then press Soft Key 1 Select . 4. Enter the time and data of the event using [...]

77 PI M Fe a t u r e s 76 V iew All ( PIM Press two times, ) Allows you to view all stored events. 1. Press Soft Key 2 PIM . 2. Select SCHEDULER, View All . All stored entries will appear. 3 . Select the item and press Soft Key 1 View . You will see a list of matches. 4. Press Soft Key 1 Option . You may select either Erase or Edit . Erase All ( PI[...]

79 PI M Fe a t u r e s 78 W AKE UP ( PIM Press th re e t im e s ) Works only in digital area. W ake up ( PIM Press three times, ) To change an event alarm time. 1. Press Soft Ke y 2 PIM . 2. Press three times, t hen press Wake up . 3. Set time for alarm and press Soft Key 1 Save . The current time will be displayed on the upper portion of the scree[...]

80 CALCULA T OR ( PIM Press four times ) Calculator ( PIM Press four times, ) Calculate simple mathematical computations. (Can enter numbers up to the second decimal place.) 1. Press and in order. 2. Press four times. 3. Select (multiplication) using k eys. 4. Press , in order. 5. Select using Soft Key 1 Answer . You will see the result of the calc[...]

81 Me ssa g e Fe a t ur e s Chapter 5. Message Features Text message, page and voice mailbox become available as soon as the power is on. You can access the above types of messages using the Message Key . In addition, you can make a call to the call back number by pressing during a message check. The phone can store up to 30 messages (1 Voice messa[...]

83 Me ssa g e Fe a t ur e s 82 SMS () V oice ( , ) Allows you to view the new voice messages recorded in the voice mail box. Once you exceed the storage limit, the old messages will be overwritten. When you have a new text message, your phone will alert you. Checking your Voice Mail box 1. Press . 2. Select Voice . To delete information press Soft [...]

85 Me ssa g e Fe a t ur e s 84 Menu Send to 1 : This feature allows multi-sending of up to 10 total addresses. There are five optional menus of Continue , Next Addr , Prev Addr , Book , and Back . 1. Press . 2. Select Send Msg. 3. After entering the phone number where the message is to be sent, press Soft Key 1 Option . Continue Use to save the cur[...]

87 Me ssa g e Fe a t ur e s 86 - Validity Indicates the validity of message delivery to the Short Message Center (SMC) without being transmitted to the sending address for certain periods of time. Those messages will be deleted within the programmed time frame. Validity time frames are as follows : Default, 30 Minutes, 1 Hour, 2 Hours, 12 Hours, 1 [...]

89 Me ssa g e Fe a t ur e s 88 Inbox ( , ) Received text messages, page messages, and e-mail lists may be searched, and the contents may be viewed. Received messages are sorted in an order of urgent messages, unread messages and read messages. To view the list of the received messages. 1. Press . 2. Select Inbox . Messages are saved in order of URG[...]

91 Me ssa g e Fe a t ur e s 90 Save Addr Stores the callback number, e-mail address and user data number included in the received message into your phone book. When received number information is displayed, the user can store the number in the corresponding number list in the phone book. For an e-mail address, select the option new entry and old en[...]

93 Me ssa g e Fe a t ur e s 92 - Erase Used to delete the recorded message. - Cancel Used to delete the recorded message. Erase Delete a selected message in the Outbox. Cancel Cancels the transmitted message. Status : Send - Messages saved in Short Message Center (SMC) have been transmitted. : Save - After message editing, it indicates that message[...]

95 Me ssa g e Fe a t ur e s 94 Setting ( , ) Alert, default CB# (call back number), Auto Save and Auto Delete may be configured for receiving new messages. You are alerted in 3 ways when you receive a new message: - By displaying a message on the screen. - By sounding a beep or vibration. - By the flashing of a lamp. Alert ( ,, ) Allows you to sele[...]

96 Auto Save ( ,, ) With this feature on, messages are automatically saved in the Outbox when transmitted. Auto Delete ( ,, ) With this feature on, old messages are automatically deleted when you exceed storage limit.[...]

97 Funct ions U se d During a call Chapter 6. Functions Used During a Call Mute ( During a call: MENU ) Sometimes it may be necessary to mute a call. To use this function during a call, press Soft Key 1 Menu and . If you need to cancel the mute, press the Soft Key 1 Menu and . Memo ( During a call: MENU ) Used to save a phone number the other party[...]

99 MiniBro w se r 98 Chapter 7. MiniBrowser MiniBrowser feature allows you to view internet content especially designed for the mobile phone interface. Access and selections within this feature are service provider dependent. For specific information on MiniBrowser access through your phone, contact your service provider. Browser Start ( , Press on[...]

101 MiniBro w se r 100 Overview MiniBrowser allows the user to use a variety of Internet services. Using the MiniBrowser on the phone allows you to: Send and receive Internet e-mail. Browse and search the World Wide Web via web pages especially designed for wireless phone customers. Set bookmarks to directly access your favorite sites. Retrieve inf[...]

103 MiniBro w se r 102 Navigating through the Br owser While using MiniBrowser, you will find that on-screen items may be presented in one of the following ways: numbered options (some options may not be numbered). links (embedded in content). text or numeric input. simple text. You can act on the options or the links by using the Soft Keys. The So[...]

105 MiniBro w se r 104 Entering T ext, Numbers, or Symbols When you are prompted to enter text, the current text entry method will appear on Soft Key 2 as Alpha, Symbol, Number, Word or Smart. (exact label depends on implementation.) To change the input mode, use Soft Key 2. To create an upper case character, use . And the current text method will [...]

107 MiniBro w se r 106 Get It Now ( , Press two times, ) Get It Now allows you to do more than just talk on your phone. Get It Now is a technology and service that allows you to download and use applications on your phone. With Get It Now, it is quick and easy to personalize your phone to your lifestyle and tastes, just download the applications th[...]

Disabling keeps the application usage and purchase information, but removes it from memory. To restore an application, go to Options, select it and click on Restore. If you have subscribed to an application, you will still be charged even when an application is disabled. Only removing an application deletes it completely from the memory of the phon[...]

110 Yes : Automatically goes to ‘Get It Now’ select key’ screen everytime you launch. No : Automatically goes to ‘ Get It Now ’ idle screen everytime you launch. 5. Main display of Get It Now will show. Start : allows you to download selected applications while displaying the Get It Now application list relayed from the Get It Now server [...]

111 A c ce sso r ie s Chapter 8. Accessories There are a variety of accessories available for your mobile phone. You can select these options according to your personal communication requirements. Consult your local dealer for availability. T ravel Charger This charger, model TC-30W, allows you to charge the battery. It supports standard U.S. 120 V[...]

113 A c ce sso r ie s 112 Data Cable Kit Connects your phone to your PC. (Model KW- Headset Connects to your phone, allowing hands- free operation. Includes earpiece, microphone, and integrated call answer / termination button. (Model Headset 1000) USB Converter Cable Connects your phone to your PC. (Model LG-USB 1000 or Model LG-USB 4000) Holster [...]

114 Press Soft Key 1 Menu . Press to scroll. Press Soft Key 2 PIM . Press to scroll. Press . Press to scroll. Menu T ree Chapter 9. Appendix SOUND 1. Ring Sound 2. Ring Type Ring Vibrate Vib1 + Ring Vib2 + Ring Vib 3+ Ring Lamp 3. Ring &Vib Vol. 4. Key Tone Normal Long 5. Key Volume 6. Ear Volume 7. Escalating Vol 8. Alerts Fade Minute Service [...]

115 S afet y G ui del i nes Chapter 10. Safety Guidelines TIA Safety Information Provided herein is the complete TIA Safety Information for Wireless Handheld phones. Inclusion of the text covering Pacemakers, Hearing Aids, and Other Medical Devices is required in the owner’s manual for CTIA Certification. Use of the remaining TIA language is enco[...]

117 S afet y G ui del i nes 116 Persons with pacemakers: Should ALWAYS keep the phone more than six inches from their pacemaker when the phone is turned ON; Should not carry the phone in a breast pocket Should use the ear opposite the pacemaker to minimize the potential for interference If you have any reason to suspect that interference in taking [...]

119 S afet y G ui del i nes 118 FDA Consumer Update The U.S. Food and Drug Administration ’ s Center for Devices and Radiological Health Consumer Update on Mobile Phones. 1. Do wireless phones pose a health hazard? The available scientific evidence does not show that any health problems are associated with using wireless phones. There is no proof[...]

121 S afet y G ui del i nes 120 4. What are the results of the research done already? The research done thus far has produced conflicting results, and many studies have suffered from flaws in their research methods. Animal experiments investigating the effects of radiofrequency energy (RF) exposures characteristic of wireless phones have yielded co[...]

123 S afet y G ui del i nes 122 8. What has FDA done to measure the radiofrequency energy coming from wireless phones ? The Institute of Electrical and Electronic Engineers (IEEE) is developing a technical standard for measuring the radiofrequency energy (RF) exposure from wireless phones and other wireless handsets with the participation and leade[...]

125 S afet y G ui del i nes 124 12. Where can I find additional information? For additional information, please refer to the following resources: • FDA web page on wireless phones (http://www.fda.gov/cdrh/phones/index.html) • Federal Communications Commission (FCC) RF Safety Program (http://www.fcc.gov/oet/rfsafety) • International Commission[...]

127 S afet y G ui del i nes 126 Before a phone model is available for sale to the public, it must be tested and certified to the FCC that it does not exceed the limit established by the government-adopted requirement for safe exposure. The tests are performed in positions and locations (e.g., at the ear and worn on the body) as required by the FCC [...]

129 S afet y G ui del i nes 128 F Features 54 Find - Find Email 69 - Find Entry 66 - Finding a Bookmark 106 - Find Name 67 G Get It Now 107 H How to use buttons 74 I Icons - Onscreen Icons 19 - Phone Type icons 68 Inbox 89 K Key Tone 55, 97 Key Volume 57 L Lock Mode 28, 62 - New Lock Code 65 Language 52 M Manner Mode 28 Making a Call 26 Memo 97 Mes[...]

130 Licensed by QUALCOMM Incorporated under one or more of the following Patents; U.S. Patent No. 4,901,307 U.S. Patent No. 5,056,109 U.S. Patent No. 5,099,204 U.S. Patent No. 5,101,501 U.S. Patent No. 5,103,459 U.S. Patent No. 5,107,225 U.S. Patent No. 5,109,390 Product manufactured or sold in U.S.; “ This product is covered by U.S. Pat. 5,818,4[...]