GB2358554A - Communications transceiver arranged to transmit to a calling transceiver information relative to unoccupied memory storage information - Google Patents
Communications transceiver arranged to transmit to a calling transceiver information relative to unoccupied memory storage information Download PDFInfo
- Publication number
- GB2358554A GB2358554A GB0001494A GB0001494A GB2358554A GB 2358554 A GB2358554 A GB 2358554A GB 0001494 A GB0001494 A GB 0001494A GB 0001494 A GB0001494 A GB 0001494A GB 2358554 A GB2358554 A GB 2358554A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transceiver
- calling
- called
- memory storage
- availability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/6505—Recording arrangements for recording a message from the calling party storing speech in digital form
Abstract
A communications transceiver having a receiver (13) and transmitter (14,) operable under the influence of a controller (15,) are connected such that a storage device (23) is able to record received signals from a calling transceiver. The transmitter (14) of a called transceiver is arranged to transmit to a calling transceiver information relative to unoccupied memory storage availability, e.g. time remaining in the storage device. The transceiver also includes a timer(24) and an alarm (25,) for providing a warning to a user of a calling transceiver when the storage device of a called transceiver is about to become full, and when the storage device is full. When the storage device is full, the calling transceiver is de-keyed.
Description
1 2358554 Communications Transceiver and Communications System
Background of the Invention
1 Field of the Invention
This invention relates to a communications transceiver, to a system in which two or more transceivers may be used and to a method of operating a radio communications system.
2. Description of the Related Art
It is known to provide a radio communications system in which portable and/or mobile radios use Select 5 signaling for selective calling, which is a manner of providing privacy between two communicating radios that share a channel frequency with other radio users. Select 5 is a selective calling scheme that uses tones of different frequency to identify individual radios.
It is known to provide a memory storage facility in Select 5 radios, so that voice messages received from other Select 5 radios may be stored for subsequent use by the operator of the radio, for example if the radio is switched to a stand-by mode and/or the operator does not respond to a calling radio. Such personal mobile radios equipped with voice storage facilities must be capable of automatically saving received voice messages when the radio is in an unattended mode.
Voice storage devices are capable of storing a limited amount of voice only, since such devices have a finite storage capacity. Currently, if one Select 5 radio is transmitting a voice storage message to be stored on a different, receiving Select 5 radio, then the receiving, called, radio does not have the facility to prevent the transmitting, calling, radio from leaving a message that is longer than the available time on the voice storage device.
As a consequence, part of the message left by the calling radio is lost and there is no indication given to the calling radio that the message has not been fully recorded.
One method of overcoming the foregoing difficulty envisaged by the present inventor would be to match the length of the radio transmission with CMOO&3.3P/Webste;./GIl C _f 2 the smallest message duration for which the voice storage device is programmed. However, such a solution is not acceptable because:
a) the voice message to be stored is different from one radio transrr)i, jor to another.
b) the amount of time remaining after storing a message will be varia 1 in dependence upon the total time of storage remaining on the st(i.,,e ge device, and c) such a solution does not prevent the transmitting radio from transmitting if the voice storage device is full.
Summary of the Invention
The present invention seeks to at least partially mitigate the foregoing disadvantages.
According to a first aspect of this invention there is provided a communications transceiver including memory storage means arranged t record received signals from a calling transceiver and means for transmitti to said calling transceiver information relative to unoccupied memory stor9 0 availability in said memory storage means, wherein said means for transmitting information relative to unoccupied memory storage availability includes means for determining memory availability in terms of time and fo r transmitting time available in said memory storage means to said calling transceiver.
Conveniently, there is provided display means for displaying memoo availability in a called transceiver.
Advantageously, there is provided a count-down timer associated witl said display means for indicating reducing time availability in the memory storage means of a called transceiver.
Preferably, an audio warning means is provided to give a warning signal a predetermined time before the called transceiver memory storage means is full.
Advantageously, said warning means is also arranged to provide a warning signal when the called transceiver memory storage means is full.
CM006,R3P/Webster/GBR!I/CT. 3 Conveniently, said warning means, when making a determination that the called transceiver storage means is full, is arranged to activate de- keying means.
Preferably, said transceiver is arranged for a simplex mode of operation and said transceiver is arranged to be mobile.
According to a second aspect of this invention there is provided a communications system arranged to provide a simplex mode of operation between a calling transceiver and a called transceiver including memory storage means in said called transceiver arranged to record signals from a calling transceiver, and means in said called transceiver for transmitting to said calling transceiver information relative to unoccupied memory storage availability in said memory storage means of said called transceiver, wherein said means for transmitting information relative to unoccupied memory storage availability includes means for determining memory availability in terms of time and for transmitting time availability in said memory storage means to said calling transceiver.
Conveniently, said calling transceiver includes display means for displaying memory availability in said called transceiver.
Advantageously, said calling transceiver includes a count-down timer associated with said display means for indicating reducing time availability in the memory storage means of said called transceiver.
Preferably, warning means is provided in said calling transceiver to give a warning signal a predetermined time before the called transceiver memory storage means is full.
Advantageously, said warning means provides a warning signal when the memory storage means of said called transceiver is full.
Conveniently, said warning means, when determining the called transceiver means is full, is arranged to de-key the calling transceiver.
Advantageously, at least one of said called and calling transceivers are mobile.
According to a third aspect of this invention, there is provided a method of providing a simplex mode of operation between a calling transceiver and a called transceiver including storing received signals from a calling transceiver C.MOO63P/Webste,r/( 1 T. 4 in a called transceiver and transmitting from said called transceiver to si calling transceiver information relative to unoccupied memory storage availability in said called transceiver, wherein said information relative tA 1 unoccupied memory storage availability is determined in terms of time a the time remaining for storage in said memory storage means is transmi from said called transceiver to said calling transceiver.
Conveniently, the calling transceiver is arranged to display the mn ip availability in said called transceiver.
Advantageously, said calling transceiver includes a count-down ti;,r for indicating the reducing time availability in a memory storage means e called transceiver.
Preferably, a warning signal is provided at said calling transceiver predetermined time before the called transceiver memory storage meansIi full.
Advantageously, said warning means provides a warning signal w6 m the called transceiver memory storage means is full.
Conveniently, said warning means in said calling transceiver is arranged to de-key said calling transmitter when the memory storage men of the called transceiver is full.
Advantageously, at least one of said called and calling transceivers E re mobile.
Brief Description of the Drawings
The invention will now be described, by way of example, with refereh, p to the accompanying drawings in which:
Figure 1 shows, in schematic form, plural transceivers communicati via a base station, Figure 2 shows, in block schematic form, a transceiver in accordanco with this invention, and Figure 3 shows a message sequence chart of a system in accordan with this invention.
CM0Q633P/Web,t;r/GBKCT. 5 Description of the Preferred Embodiments
Referring to Figure 1, three transceivers 1, 2 and 3 are arranged to be in communication with one another, selectively, via a base station 4.
However, the present invention is not limited to such an arrangement and the transceivers could, if required, be in direct communication with one another.
The transceivers may be mobile or portable (PMR) radios.
Each transceiver 10, shown in Figure 2, has a transmit/receive antenna 11 connected via an antenna switch 12 selectively to a receiver 13 or a transmitter 14. The receiver 13 and transmitter 14 are connected to a controller 15 arranged to control operation of the transceiver 10. The receiver 13 and controller 15 are each connected to an audio amplifier 16 which provides audio output signals to a loudspeaker 17 for aural use by a user.
The transmitter 14 is connected to receive input from a data terminal 18 and from a microphone 19. Data terminal 18 is also connected to receiver 13, to enable the radio to receive data. This connection is not shown on figure 2, for simplicity of illustration.
The controller is connected to a keypad 20 from which a user may input desired parameters such as channel ID and calling device ID which may be stored in a read-only memory 21. Visual indications of the stored parameters may be displayed on a VDU 22.
The transceiver may be provided with software to enable voice activation, via microphone 19. The user of the transceiver may therefore enter voice commands, instead of or in addition to entering commands via keypad 20.
As thus far described, the transceiver is conventional, but in accordance with this invention there is additionally provided voice (or other data) memory storage device 23 which may be an analogue store or a digital store in dependence upon the communication network. Thus, if the transceiver is an analogue device, then the memory storage device 23 may also be analogue, or there may be interposed between the controller 15 and the storage device 23 an A-D converter if it is desired that the storage be a digital store. Alternatively, if the transceiver is a digital device then it will usually be preferred that the memory storage device 23 is a digital store. The CW_OQ3-P/Webster,'Gl] J/, 6 digital store may include header information indicative of a calling stationj pd a voice storage portion. The memory storage device 23 is connected to timer 24 for providing a count-down of the time available for leaving a message in the called radio and the timer is connected to an alarm 25 fo, providing an audible or visual or other form of indication, e.g. vibration, tol user indicative of a predetermined time before the called storage memor-,, , device is full andlor when the called storage memory device is full.
The display 22 may display, for example, the address of the perso 1 calling, memory ergonomics, channel number, identity of the called radioj d the count down of the time for which storage availability in the called radi(i, memory storage device remains.
Referring now to Figure 3, the situation is envisaged where the transceivers are a 'calling' radio A and a 'called' radio B. These may be, f example, personal mobile radio (PMR) radios.
Radios A and B are programmed to decode and generate, for example, Select 5 decode telegrams (messages). The telegrams are specified as digits, each digit representing a Select 5 tone frequency in a currently preferred embodiment, although it is to be understood that the invention is not limited thereto.
In general terms, the calling radio A generates a telegram specifyin the identity of the called radio B. Radio B receives and decodes this telegr i thereby recognising that it is being called.
Called radio B generates a telegram specifying how much time remains for recording messages on radio B. This telegram is transmitted to' radio A. Radio A thereby recognises how long a message it can leave in th memory of radio B. Radio A may inform the user of radio A of this informati.
1 Radio A may also incorporate a timer, shown as element 24 on figure 2. Th timer may be set with the 'time remaining to record a message', and, for example, alert the user of radio A shortly before this time has been used up Radio A may make the alert using the alarm 25 shown in figure 2. This allo 1 the user of radio A to record a message of optimal duration, and sufficientlyll, abbreviated content, in the remaining radio capacity of radio B. CM006.3.3P/Webste.r/GBRYCT 7 The telegram generated by called radio B may contain variable digits, for example, V, and V2, which represent the amount of time that radio A can transmit in response to this particular decode. The telegram from radio B therefore contains one or more decode variable digits, which indicate the amount of time that a calling radio can transmit in response to that decode.
In the specific example of the message sequence chart shown in figure 3, the first decode telegram shown, progressing down figure 3, is the call from radio A to radio B. The telegram 12 3 4 6 shown specifies the identity of the radio being called, i.e. radio B. Radio B is programmed to decode its own ID, indicated in the telegram 12 3 4 6.
The second decode telegram is from radio B to radio A. This decode telegram is of the general form 12 4 V, V2, which is the 'voice storage duration' decode telegram. Here V, and V2 represent tone positions where any tone can be received, and the actual tones received represent the amount of time that the calling radio is permitted to transmit in totality. Thus, if radio A receives 1 2 4 9 9 it will only be allowed to transmit for 99 seconds, after which radio A will automatically de-key.
In the example under consideration, where radio A calls radio B when radio B has been left in an unattended mode, the entire operation shown in figure 3 is as follows:
1. Radio A, the calling transceiver, transmits 1 2 3 4 6 to radio B, the called transceiver.
2. Radio B has been left in an unattended mode, and so transmits a pre recorded voice message, e.g. "please leave message after tone" back to radio A.
3. Radio B then transmits a telegram 1 2 4 5 0 to radio A, where the digits 5 0 are representative of the time left available for recording a voice message in the memory storage device of radio B. 4. Radio A decodes the telegram and determines that it can transmit for 50 seconds.
5. Radio A's user transmits a voice message to radio B, and radio A provides a count down by timer 24 starting at 50, decrementing every second. After 45 seconds an audible warning signal, for example, a warning alert, is made by CMOO&3,3P/Webst alarm 25 to alert the user of the imminent filling of the radio B voice stor device.
6. At 50 seconds, the alarm of radio A makes a further alarm signal andb c controller thereof automatically de-keys the transmitter of radio A.
Thus, with the present invention, the length of the stored voice 1 messages can be varied in dependence on the total time left on the voi C? storage device. A calling radio can be prevented from transmitting a VOi E storage message if the called device voice storage is full. A radio fitted i h, display can provide a counter indicating how long the calling radio can transmit a message.
It will be understood that the present invention is of particular ben to simplex mode of operation. It can be used with either analogue or digit& radios.
Further, although the invention is described in relation to broadcasi voice information, the invention could be utilised in a communications i transceiver and system involving communications transceivers where datol rather than voice information is transmitted. Although the invention is particularly applicable to portable andlor mobile radios, the invention is not; limited thereto.
CMOQC33P/Webst(:r/GBIt/C'V. 9
Claims (21)
1. A communications transceiver (10) including memory storage means (23) arranged to record received signals from a calling transceiver and means (14) for transmitting to said calling transceiver information relative to unoccupied memory storage availability in said memory storage means, wherein said means (14) for transmitting information relative to unoccupied memory storage availability includes means for determining memory availability in terms of time and for transmitting time available in said memory storage means to said calling transceiver.
2. A transceiver as claimed in claim 1, wherein there is provided display means (22) for displaying memory availability in a called transceiver.
3. A transceiver as claimed in claim 2, wherein there is provided a countdown timer (24) associated with said display means (22) for indicating reducing time availability in the memory storage means of a called transceiver. 20 4. A transceiver as claimed in any preceding claim, wherein an audio warning means (25) is provided to give a warning signal a predetermined time before the called transceiver memory storage means is full. 5. A transceiver.as claimed in claim 4, wherein said warning means (25) is 25 also arranged to provide a warning signal when the called transceiver memory storage means is full. 6. A transceiver as claimed in claim 4 or claim 5, wherein said warning means (25), when making a determination that the called transceiver storage means 30 is full, is arranged to activate de-keying means.
7. A transceiver as claimed in any preceding claim, wherein said transceiver is arranged for a simplex mode of operation.
CM00635P/Webstpt/(; T 1 10 8. A transceiver as claimed in any preceding claim, wherein said transcei i e r is arranged to be mobile or portable.
9. A communications system arranged to provide a simplex mode of i operation between a calling transceiver and a called transceiver, includin memory storage means (23) in said called transceiver arranged to recor signals from a calling transceiver, and means (14) in said called transcei EE r )i for transmitting to said calling transceiver information relative to unoccupi I memory storage availability in said memory storage means of said called transceiver, wherein said means for transmitting information relative to 1 unoccupied memory storage availability includes means for determining memory availability in terms of time and for transmitting time availability iii, said memory storage means to said calling transceiver.
10. A system as claimed in claim 9, wherein said calling transceiver includ; display means (22) for displaying memory availability in said called transceiver.
11. A system as claimed in claim 9 or claim 10, wherein said calling transceiver includes a c,ount-down timer (24) associated with said display means for indicating reducing time availability in the memory storage meaor of said called transceiver.
12. A system as claimed in any of claims 9 to 11, wherein warning mearis (25) is provided in said calling transceiver to give a warning signal a predetermined time before the called transceiver memory storage means is full.
13. A system as claimed in claim 12, wherein said warning means (25) provides a warning signal when the memory storage means (23) of said called transceiver is full.
CXII)0,633P/Webstd/GBUCT, 14. A system as claimed in claim 12 or claim 13, wherein said warning means (25), when determining the called transceiver means is full, is arranged to dekey the calling transceiver.
15. A system as claimed in any of claims 9 to 14, wherein at least one of said called and calling transceivers are mobile or portable. 16. A method of providing a simplex mode of operation between a calling transceiver and a called transceiver including storing (23) received signals 10 from a calling transceiver in a called transceiver and transmitting (14) from said called transceiver to said calling transceiver information relative to unoccupied memory storage availability in said called transceiver, wherein said information relative to unoccupied memory storage availability is determined in terms of time, and the time remaining for storage in said 15 memory storage means is transmitted from said called transceiver to said calling transceiver. 17. A method as claimed in claim 16, wherein the calling transceiver is arranged to display (22) the memory availability in said called transceiver. 20 18. A method as claimed in claim 16 or 17, wherein said calling transceiver includes a count-down timer for indicating the reducing time availability in a memory storage means of the called transceiver. 25 19. A method as claimed in any of claims 16 to 18, wherein a warning signal is provided at said calling transceiver a predetermined time before the called transceiver memory storage means is full. 20. A method as claimed in claim 19, wherein a warning signal is provided at 30 said calling transceiver when the called transceiver memory storage means is full.
CTAOO,6-3P/Webslqr/(--E 12 21. A method as claimed in claim 20, wherein said called transceiver is arranged to de-key said calling transmitter when the memory storage mp, of the called transceiver is full.
22. A method as claimed in any of claims 16 to 21, wherein at least one, p said called and calling transceivers is mobile or portable.
Amendments to the claims have been filed as follows Claims 1. A mobile or portable radio communications transceiver (10) including memory storage means (23) arranged to record received signals from a calling transceiver and means (14) for transmitting to said calling transceiver information relative to unoccupied memory storage availability in said memory storage means, wherein said means (14) for transmitting information relative to unoccupied memory storage availability includes means for determining memory availability in terms of time and for transmittng to said calling transmitter a digital signal which can be recognised by the calling transceiver which indicates to the calling transceiver time available in said memory storage means.
2. A transceiver as claimed in claim 1, wherein there is provided display means (22) for displaying, when the transceiver is operating in a calling mode memory availability in a called transceiver.
3. A transceiver as claimed in claim 2, wherein there is provided a countdown timer (24) associated with said display means (22) for indicating reducing time availability in the memory storage means of a called transceiver.
4. A transceiver as claimed in any one preceding claim, wherein a warning means (25) is provided to give a warning signal a predetermined time before the called transceiver memory storage means is full.
5. A transceiver as claimed in any one of the preceding claims, wherein said warning means (25) is arranged to provide a warning signal when the transceiver memory storage means of the called transceiver is full.
6. A transceiver as claimed in claim 5, wherein said warning means (25), when making a determination that the called transceiver storage means is full, is arranged to activate de-keying means.
7. A transceiver as claimed in any one preceding daim, wherein said transceiver, is arranged for a simplex mode of operation.
8. A communications system arranged to provide a simplex mode of operation between a calling mobile or portable radio transceiver and a called mobile or portable radio transceiver, including memory storage means (23) in said called transceiver arranged to record signals from said calling transceiver, and means (14) in said called transceiver for transmitting to said calling transceiver information relative to unoccupied memory storage availability in said memory storage means of said called transceiver, wherein said means for transmitting information relative to unoccupied memory storage availability includes means for determining memory availability in terms of time and for transmitting to said calling transceiver a digital signal which can be recognised by the called transceiver which indicates to the called transceiver time availability in said memory storage means.
9. A system as claimed in claim 8, wherein said calling transceiler includes display means (22) for displaying memory availability in said called transceiver.
10. A system as claimed in claim 8 or claim 9, wherein said calling transceiver includes a count-down timer (24) associated with said display means for indicating reducing time availability in the memory storage means of said called transceiver.
11. A system as claimed in any one of claims 8 to 10, wherein warning means (25) is provided in said calling transceiver to give a warning signal a in predetermined time before the called transceiver memory storage means (23) is full.
12. A system as claimed in any one of claims 8 to 11, wherein said warning means (25) in said calling transceiver is arranged to give a warning signal when the memory storage means (23) of said called transceiver is full.
13. A system as claimed in claim 11 or claim 12, wherein said warning means (25), when determining that the memory storage means of the called transceiver means is full, is arranged to de-key the calling transceiver.
14. A method of providing a simplex mode of operation between a calling mobile or portable radio transceiver and a called mobile or portable radio transceiver including storing (23) received signals from the calling transceiver in the called transceiver and transmitting (14) from said called transceiver to said calling transceiver information relative to unoccupied memory storage availability in said called transceiver, wherein said information relative to unoccupied memory storage availability is determined in terms of time, anda digital signal which can be recognised by the calling transceiver indicating to the calling transceiver the time remaining for storage in said memory storage means of the called transceiver is transmitted from said called transceiver to said calling transceiver.
15. A method as claimed in claim 14, wherein the calling transceiver is arranged to display (22) the memory storage availability in the called transceiver.
16. A method as claimed in claim 14 or 15, wherein said calling transceVer includes a count-down timer for indicating the reducing time availability in a memory storage means of the called transceiver.
17. A method as claimed in any of claims 14 to 16, wherein a warning signal is 1 provided by said calling transceiver a predetermined time before the called transceiver memory storage means is full.
18. A method as claimed in any one of claims 14 to 17, wherein a warning signal is provided by said calling transceiver when the called transceiver memory storage means is full.
19. A method as claimed in any one of claims 14 to 18, wherein said called transceiver is arranged to de-key said calling transceiver when the memory storage means of the called transceiver is full.
20. A mobile or portable radio transceiver substantially asdescribed herein with reference to Figure 2 of the accompanying drawings.
21. A method of providing radio communication in a simplex mode of operation between a first mobile or portable radio transceiver and a second mobile or portable radio transceiver, the method being substantially as described herein with reference to Figure 2 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0001494A GB2358554B (en) | 2000-01-24 | 2000-01-24 | Mobile or portable radio communications transceiver and communications system and method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0001494A GB2358554B (en) | 2000-01-24 | 2000-01-24 | Mobile or portable radio communications transceiver and communications system and method using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0001494D0 GB0001494D0 (en) | 2000-03-15 |
| GB2358554A true GB2358554A (en) | 2001-07-25 |
| GB2358554B GB2358554B (en) | 2002-01-16 |
Family
ID=9884169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0001494A Expired - Fee Related GB2358554B (en) | 2000-01-24 | 2000-01-24 | Mobile or portable radio communications transceiver and communications system and method using the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2358554B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2369008A (en) * | 2000-11-13 | 2002-05-15 | Lucent Technologies Inc | Wireless data terminal with storage capacity monitoring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803717A (en) * | 1984-07-30 | 1989-02-07 | Kabushiki Kaisha Toshiba | Automatic answering telephone with memory storage having storage indication and an alarm |
| JPH11177681A (en) * | 1997-12-08 | 1999-07-02 | Funai Techno System Kk | Communication equipment with automatic recording function |
-
2000
- 2000-01-24 GB GB0001494A patent/GB2358554B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803717A (en) * | 1984-07-30 | 1989-02-07 | Kabushiki Kaisha Toshiba | Automatic answering telephone with memory storage having storage indication and an alarm |
| JPH11177681A (en) * | 1997-12-08 | 1999-07-02 | Funai Techno System Kk | Communication equipment with automatic recording function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2369008A (en) * | 2000-11-13 | 2002-05-15 | Lucent Technologies Inc | Wireless data terminal with storage capacity monitoring |
| GB2369008B (en) * | 2000-11-13 | 2002-09-11 | Lucent Technologies Inc | Radio telecommunications network user equipment and method of operation |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0001494D0 (en) | 2000-03-15 |
| GB2358554B (en) | 2002-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080124 |