A power supply monitoring system Field of the Invention [1] The present invention relates to monitoring systems and in particular, but not necessarily entirely, to power supply monitoring system. Summary of the Disclosure [2] According to one aspect, there is provided a power supply monitoring system, the system comprising: a power monitoring server; and at least one power interface device in operable communication with the power monitoring server across a data network and wherein the power monitoring server comprises: a power input; a power output; a power sensor operably coupled between the power input and the power output; a data interface operably coupled to the power sensor; and a client device in operable communication with the power monitoring server across the data network, wherein, in use: the power monitoring server configured with a GUID of the power interface device; the power sensor detects the supply of power at the power input; the data interface is configured with a web address of the power monitoring server for sending periodic data to the power monitoring server indicative of the supply of power to the power interface device; the power monitoring server is configured for detecting not receiving the periodic data from the power interface device for a period; and the power monitoring server is configured for sending a power failure notification to the client device. [3] The power monitoring functionality of the power monitoring server may be configurable from the client device. [4] At least one of the GUID and a type of notification are configurable from the client device. [5] The power sensor may be further configured for detecting power draw from the power outlet; and in use: upon detecting no power draw from the power outlet, the data interface may be configured for sending a power failure notification to the power monitoring server. [6] The data interface may comprise a Wi-Fi interface. [7] Other aspects of the invention are also disclosed. Brief Description of the Drawings [8] Notwithstanding any other forms which may fall within the scope of the present invention, a preferred embodiments of the disclosure will now be described, by way of example only, with reference to the accompanying drawings in which: [9] Figure 1 shows a power supply monitoring system in accordance with another preferred embodiment of the present invention. Patentec Patent Attorneys Page 1 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 Description of Embodiments [10] For the purposes of promoting an understanding of the principles in accordance with the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the disclosure as illustrated herein, which would normally occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the disclosure. [11] Before the structures, systems and associated methods relating to the power supply monitoring system are disclosed and described, it is to be understood that this disclosure is not limited to the particular configurations, process steps, and materials disclosed herein as such may vary somewhat. It is also to be understood that the terminology employed herein is used for the purpose of describing particular embodiments only and is not intended to be limiting since the scope of the disclosure will be limited only by the claims and equivalents thereof. [12] In describing and claiming the subject matter of the disclosure, the following terminology will be used in accordance with the definitions set out below. [13] It must be noted that, as used in this specification and the appended claims, the singular forms ''a," "an," and "the" include plural referents unless the context clearly dictates otherwise. [14] As used herein, the terms "comprising," "including," "containing," "characterised by," and grammatical equivalents thereof are inclusive or open-ended terms that do not exclude additional, unrecited elements or method steps. [15] It should be noted in the following description that like or the same reference numerals in different embodiments denote the same or similar features. Power supply monitoring system 1 [16] Turning now to figure 1, there is shown a power supply monitoring system 1. As will be described in further detail below, the power supply monitoring system 1 is configured for use in alerting users of the failure of power supply to various electrical equipment, such as household appliances, office equipment and the like. In this manner, for example, while a user is away from home, the user may receive instant notification of the failure of power supply to a power supply critical household appliance, such as a refrigerator, fish tank or the like. [17] As can be seen, the system 1 comprises a power interface device 28. The power interface device 28 electrically couples a power outlet 2 to an electrical device 21. In this regard, the power interface 12 comprises a power input 17 and a power output 22. Patentec Patent Attorneys Page 2 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 [18] In a preferred embodiment, the power interface device 28 is a small form factor device comprising male/female socket couplings for the power input 17 and power output 22 respectively. In this manner, the user may simply insert the power interface device 28 into the power outlet 2 and then connect the electrical plug of the electrical device 21 to the power interface device 28. [19] In embodiments, the power interface device 28 may draw power for the operation of the power interface device 28 from the power outlet 2. [20] It should be noted that in other less preferred embodiments, the power interface device 28 need not necessarily comprise male/female connections for interfacing between a power outlet 22 and an electrical plug of the electrical device 21. For example, the power interface device 28 may comprise a power cord engagement comprising a toroidal current sensor which may be clipped about appliance leads for the purposes of detecting current flow therethrough. [21] As can be seen, operably coupled between the power input 17 and the power output 22 is a power sensor 18. The power sensor 18 is configured for detecting power supply from the power outlet 2 so as to be able to allow the system 1 to send a notification upon detecting failure of the power supply to the electrical device in 21. There are different manners in which the power sensor 18 may detect the power supply. [22] In one manner, the power sensor 18 may comprise a potential detector 19 to detect the voltage at the power input 17. In this manner, should the power supply be interrupted to the power outlet 2, the potential detector 19 would detect a drop in voltage. In another embodiment, the power sensor 18 may comprise a current draw detector 20, such as ammeter or the like, configured for detecting the current draw from the power outlet 2 to the electrical device 21. Using the current draw detector 22 may additionally detect the failure of the electrical appliance 21 being indicated by the lack of current draw by the electrical device 21. [23] Operably coupled to the power sensor 18 is a data interface 11. As will be described in further detail below, the data interface 11 is configured for receiving data from the power interface device 28. [24] As can be seen, the system 1 comprises a client device 4 which is used by the user for receiving the notifications of the failure of the power supply. In embodiments, the client device 4 takes the form of a smart phone device such as an Apple iPhone device or the like. Now, the notifications may be received in differing manners, such as by way of email, SMS message and the like. However, in one embodiment, the client device 4 is configured for executing a software application "app" 3 for the purposes of implementing the functionality described herein. Specifically, the user may download the app 3 from an application store, such as from the Apple App store or the like. Patentec Patent Attorneys Page 3 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 [25] Now, the power interface device 28 may interact directly with the client device 4. However, in a preferred embodiment, the system 1 comprises a cloud server 5 configured for implementing various functionality of the system 1 such as user management, client device management and power interface device management. [26] Specifically, as can be seen, the cloud server 5 may comprise a database 6 configured for storing a power interface devices table 7 for storing records relating to various power interface devices 28. The database 6 may further comprise a users table 8 configured for storing user records relating to the various users of the system 1. Furthermore, the database 6 may comprise a client devices table 9 for storing records relating to the client devices 4. [27] Generally, in use, having downloaded the software application 3, the user would, utilising the software application 3 register with the cloud server 5, including in inputting authentication credentials and power interface device identification data and the like. Having received this information, the cloud server 5 is able to receive notifications from the appropriate power interface devices 28 and for the notifications to the appropriate client devices 4 belonging to the appropriate users. [28] In embodiments, multiple users may be registered with a single power interface device 28 such that multiple users, either simultaneously, or in turn, may receive notifications of the loss of power to the power interface device 28. [29] In embodiments, the users table 8 of the database may comprise appropriate contact information for the user so as to allow the user to configure how to receive notifications such as by way of email, (and specifically to which email address), or via SMS, telephone call or the like. In embodiments where the cloud server 5 is not employed, such settings may be stored within the memory device of the power interface device 28 as will be described below. [30] Now, there are different manners by which the data interface 11 may communicate with the cloud server 5 or the client device 4. In a preferred embodiment, the data interface 11 comprises a Wi-Fi interface 12. In regard, the Wi-Fi interface 12 may be configured to authenticate with a home router 10 so as to be able to communicate via the Internet to the could server 5. [31] However, in another embodiment, other data interface types may be employed. For example, the data interface 11 may comprise a Bluetooth interface 13 for short-range wireless communication. In this manner, the user may install a Bluetooth hub within the household, the Bluetooth hub configured for the short-range pairing with various power interface devices 28. Patentec Patent Attorneys Page 4 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 [32] In another embodiment, the data interface 11 may comprise an Ethernet over mains 14 interface allowing the power interface device 28 to communicate across the household electrical system. [33] In a further embodiment, the data interface 11 may comprise a propriety interface 15, so as to be able to communicate using a propriety protocol such as Zigbee, Z-wave or the like. [34] In a yet further embodiment, the data interface 11 may comprise a GSM interface 16 allowing the power interface device 28 to send signals across a cellular network. In this regard, the power interface device 28 may comprise a Sim card slot for the purposes of receiving a Sim card therein. [35] There are different manners by which the power interface device 28 may send notifications to the user. In one embodiment, the power interface device 28 is configured for sending periodic notifications informing the cloud server 5 or the client device 4 that the power interface device 28 is receiving power. As such, should the power fail to the power interface device 28, the power interface device 28 no longer sends notification such that the cloud server 5 or the client device 4 may ascertain that the power interface device 28 has experienced a loss of power and is therefore unable to send further notifications. [36] In other embodiments, the power interface 28 is configured for sending notifications upon detecting a loss in power. In this regard, the power interface device 28 may comprise a backup battery, charged capacitor or the like so as to be able to allow the power interface device in 28 to be able to send a notification despite the loss of power. In embodiments, the power interface device 28 may be configured to send a further notification upon the resumption of power again should the power resume. [37] In embodiments, the power interface device 28 may comprise a processor 23 for performing the functionality described herein. In embodiments, the processor 23 may be a low powered embedded processor such as an FPGA device or the like suited for utilisation for the power interface device 28. The processor 23 may be controlled by firmware 24. Furthermore, the processor 23 may comprise a memory device 25, such as ROM memory for the purposes of storing configuration settings 26. For example, the configuration settings 26 may specify the type of notification to be sent, when notifications are to be sent and the like. Furthermore, the memory device 25 may comprise authentication settings 27 for the purposes of allowing a data interface 11 for authenticating with the router 10. [38] In embodiments, the system 1 may be configured such that the user, utilising the client device 4, may configure the settings which are then updated within the settings 26 of the memory device 25. Patentec Patent Attorneys Page 5 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 [39] It should be noted that as opposed to the power interface device 28 being a standalone device, the power interface device 28 may be inbuilt into appliances or electrical distribution networks. For example, in one embodiment, the power interface device may be inbuilt into a household appliance such as a fridge or the like, or otherwise embedded in the electrical lead wherein the electrical lead plug itself. [40] It should be noted that in these embodiments the power interface device 28 may communicate using the mains 14 data interface 11. [41] In another embodiment, the power interface device 8 may be built into electrical distribution networks so as to be, for example, located within a power board fuse box or the like of a residence, commercial building or the like. Exemplary embodiment [42] Having described the above technical architecture, there will now be provided an exemplary embodiment for illustrative purposes. It should be noted that the illustrative embodiments provided beneath are exemplary only and that no technical limitation should necessarily be imputed to the scope of the embodiments described herein accordingly. [43] In this exemplary embodiment, a user purchases a "smart plug" or appliance comprising the power interface device 28. Such plug or appliance may be marked with an indication of such, such as by way of registered trademark of the like indicative of the functional capabilities of the plug or appliance. [44] Thereafter, so as to avail of the power monitoring functionality described herein, the user downloads the software application 3 to the user's smart phone client device 4 from a software application store, such as the Apple App Store or the like. In embodiments, the marking on the plug or appliance may comprise information indicative of the appropriate application to download, including a 2-D barcode configured to cause the client device 4 to download the app 3 when scanned by the client device 4. [45] Having downloaded the application 3, the user is prompted to perform a registration process wherein the user creates a user account utilising authentication credentials, such as a username and password combination. [46] Having created an account, the user is able to input the ID number of the power interface device 28 so as to allow the system 1 to identify the power interface device 28. For example, the power interface device 28 may comprise the GUID "ID2143590" which the user inputs into the app 3. In alternative embodiments, the user may scan a 2-D barcode or the like borne by the device 28 so as to Patentec Patent Attorneys Page 6 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 configure the app 3 with the GUID accordingly. The user may register multiple power interface devices 28 in this way. [47] The user may further choose a service subscription model by nominating a level of service relating to the power monitoring functionality provided by the system 1. The user may further input payment authorisation information, such as a credit card number or the like to allow the system 1 to deduct payments for the service level required. [48] The user may further, utilising the application 3, configure alert preferences for receiving power monitoring alerts. For example, the user may elect to receive different types of notifications, such as push notifications, email notifications, phone call notifications, SMS notifications and the like. [49] Furthermore, the user may nominate several notification receivers such as, for example, electing to receive both an SMS and an email for a power monitoring notification. Furthermore, the user may nominate separate email addresses to receive the notifications, for example. [50] Having input such configuration data, the system 1 begins to monitor the power interface device 28 utilising the provider GUID. [51] As alluded to above, there are different manners by which the power interface device 28 may communicate with the server 5. [52] In one embodiment, the power interface device 28 is connected via a wired or wireless (such as Wi-Fi) interface so as to be able to communicate with the cloud server 5 across the Internet. In alternative embodiments, a centralised hub is located within the household or vicinity for allowing short-range communication between the power interface device 28 and the hub. In one embodiment, the hub is a Bluetooth hub allowing short-range Bluetooth communication between the power interface device in 28 and the hub. In other embodiments, the power interface device in 28 may communicate by way of Ethernet-over-mains or propriety communication protocol, such as Zigbee, Z wave and the like. [53] Now, in a preferred embodiment, the power interface device 28 is configured to send periodic "alive" notifications to the server 5. For example, the power interface device 28 may be configured for sending an alive signal to the cloud server 5 every 10 seconds or other suitable periodic timing interval. For example, the power interface device 28, being configured with the web address (such as the URL or IP address) of the cloud server 5 may be configured for sending the GID of the power interface device 28 to the server 5 at these periodic intervals. [54] In this manner, should the server 5 fail to receive the alive notification from the power interface device 28 for a predetermined period, such as 20 seconds, the server 5 may determine that Patentec Patent Attorneys Page 7 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 the supply of power to the power interface device 8 has failed and so as to be able to send a power failure notification to the client device 4. [55] In embodiments, other information may be sent such as the current draw/operational status of the appliance. In this embodiment, the power interface device 28 may be configured for detecting not only "upstream" power supply faults, but also "downstream" power supply faults such as wherein, for example, a fish tank oxygenation unit fails and therefore subsequently fails to draw current from the power interface device 28. In embodiments, downstream power supply faults may be notified by the power interface device 28 as-it-happens. [56] As such, in embodiments, the power interface device 28 may be configured for sending periodic alive notifications to the cloud server 5 such that the cloud server 5 is able to infer the failure of power supply to the power interface device 28 upon detecting a failure of the receipt of the alive notifications. Furthermore, the power interface device 28 may be configured for sending an as-it happens failing notification to the cloud server 5 should the power interface device 28 detect the load device's failure to draw current, failure to draw a minimum threshold of current or even failure to draw current in accordance with the usual current draw amount or pattern as is learnt by the power interface device 28. [57] For example, using the above described configuration settings, the user may, by configuring the software application 3, configure that the system 1 to send a notification to the client device 4 1) should the power interface device 28 not receive power for more than 30 seconds and 2) should the electrical device 28 fail to draw greater than one amp of current over a two-hour period. [58] Furthermore, in a preferred embodiment, the user, utilising the software application 3, may view, in substantial real time, the status of any power interface devices 28 registered to the software application 3 such as the operational status (such as normal operation or failure) and further additional information, such as real-time current draw, power usage patterns and the like. Patentec Patent Attorneys Page 8 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 Interpretation Wireless: [59] The invention may be embodied using devices conforming to other network standards and for other applications, including, for example other WLAN standards and other wireless standards. Applications that can be accommodated include IEEE 802.11 wireless LANs and links, and wireless Ethernet. [60] In the context of this document, the term "wireless" and its derivatives may be used to describe circuits, devices, systems, methods, techniques, communications channels, etc., that may communicate data through the use of modulated electromagnetic radiation through a non-solid medium. The term does not imply that the associated devices do not contain any wires, although in some embodiments they might not. In the context of this document, the term "wired" and its derivatives may be used to describe circuits, devices, systems, methods, techniques, communications channels, etc., that may communicate data through the use of modulated electromagnetic radiation through a solid medium. The term does not imply that the associated devices are coupled by electrically conductive wires. Processes: [61] Unless specifically stated otherwise, as apparent from the following discussions, it is appreciated that throughout the specification discussions utilizing terms such as "processing", "computing", "calculating", "determining", "analysing" or the like, refer to the action and/or processes of a computer or computing system, or similar electronic computing device, that manipulate and/or transform data represented as physical, such as electronic, quantities into other data similarly represented as physical quantities. Processor: [62] In a similar manner, the term "processor" may refer to any device or portion of a device that processes electronic data, e.g., from registers and/or memory to transform that electronic data into other electronic data that, e.g., may be stored in registers and/or memory. A "computer" or a "computing device" or a "computing machine" or a "computing platform" may include one or more processors. [63] The methodologies described herein are, in one embodiment, performable by one or more processors that accept computer-readable (also called machine-readable) code containing a set of instructions that when executed by one or more of the processors carry out at least one of the methods described herein. Any processor capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken are included. Thus, one example is a typical processing Patentec Patent Attorneys Page 9 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 system that includes one or more processors. The processing system further may include a memory subsystem including main RAM and/or a static RAM, and/or ROM. Computer-Readable Medium: [64] Furthermore, a computer-readable carrier medium may form, or be included in a computer program product. A computer program product can be stored on a computer usable carrier medium, the computer program product comprising a computer readable program means for causing a processor to perform a method as described herein. Networked or Multiple Processors: [65] In alternative embodiments, the one or more processors operate as a standalone device or may be connected, e.g., networked to other processor(s), in a networked deployment, the one or more processors may operate in the capacity of a server or a client machine in server-client network environment, or as a peer machine in a peer-to-peer or distributed network environment. The one or more processors may form a web appliance, a network router, switch or bridge, or any machine capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that machine. [66] Note that while some diagram(s) only show(s) a single processor and a single memory that carries the computer-readable code, those in the art will understand that many of the components described above are included, but not explicitly shown or described in order not to obscure the inventive aspect. For example, while only a single machine is illustrated, the term "machine" shall also be taken to include any collection of machines that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein. Additional Embodiments: [67] Thus, one embodiment of each of the methods described herein is in the form of a computer readable carrier medium carrying a set of instructions, e.g., a computer program that are for execution on one or more processors. Thus, as will be appreciated by those skilled in the art, embodiments of the present invention may be embodied as a method, an apparatus such as a special purpose apparatus, an apparatus such as a data processing system, or a computer-readable carrier medium. The computer-readable carrier medium carries computer readable code including a set of instructions that when executed on one or more processors cause a processor or processors to implement a method. Accordingly, aspects of the present invention may take the form of a method, an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of carrier medium (e.g., a Patentec Patent Attorneys Page 10 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 computer program product on a computer-readable storage medium) carrying computer-readable program code embodied in the medium. Carrier Medium: [68] The software may further be transmitted or received over a network via a network interface device. While the carrier medium is shown in an example embodiment to be a single medium, the term "carrier medium" should be taken to include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) that store the one or more sets of instructions. The term "carrier medium" shall also be taken to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by one or more of the processors and that cause the one or more processors to perform any one or more of the methodologies of the present invention. A carrier medium may take many forms, including but not limited to, non-volatile media, volatile media, and transmission media. Implementation: [69] It will be understood that the steps of methods discussed are performed in one embodiment by an appropriate processor (or processors) of a processing (i.e., computer) system executing instructions (computer-readable code) stored in storage. It will also be understood that the invention is not limited to any particular implementation or programming technique and that the invention may be implemented using any appropriate techniques for implementing the functionality described herein. The invention is not limited to any particular programming language or operating system. Means For Carrying out a Method or Function [70] Furthermore, some of the embodiments are described herein as a method or combination of elements of a method that can be implemented by a processor of a processor device, computer system, or by other means of carrying out the function. Thus, a processor with the necessary instructions for carrying out such a method or element of a method forms a means for carrying out the method or element of a method. Furthermore, an element described herein of an apparatus embodiment is an example of a means for carrying out the function performed by the element for the purpose of carrying out the invention. Connected [71] Similarly, it is to be noticed that the term connected, when used in the claims, should not be interpreted as being limitative to direct connections only. Thus, the scope of the expression a device A connected to a device B should not be limited to devices or systems wherein an output of device A is directly connected to an input of device B. It means that there exists a path between an output of Patentec Patent Attorneys Page 11 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 A and an input of B which may be a path including other devices or means. "Connected" may mean that two or more elements are either in direct physical or electrical contact, or that two or more elements are not in direct contact with each other but yet still co-operate or interact with each other. Embodiments: [72] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure, in one or more embodiments. [73] Similarly, it should be appreciated that in the above description of example embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description of Specific Embodiments are hereby expressly incorporated into this Detailed Description of Specific Embodiments, with each claim standing on its own as a separate embodiment of this invention. [74] Furthermore, while some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention, and form different embodiments, as would be understood by those in the art. For example, in the following claims, any of the claimed embodiments can be used in any combination. Different Instances of Objects [75] As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third", etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner. Patentec Patent Attorneys Page 12 of 14 Level 11, 65 York Street Sydney NSW 2000 Australia www.patentec.com.au 0291889689 Specific Details [76] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In other instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Terminology [77] In describing the preferred embodiment of the invention illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, the invention is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms such as "forward", "rearward", "radially", "peripherally", "upwardly", "downwardly", and the like are used as words of convenience to provide reference points and are not to be construed as limiting terms. Comprising and Including [78] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" are used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. [79] Any one of the terms: including or which includes or that includes as used herein is also an open term that also means including at least the elements/features that follow the term, but not excluding others. Thus, including is synonymous with and means comprising. Scope of Invention [80] Thus, while there has been described what are believed to be the preferred embodiments of the invention, those skilled in the art will recognize that other and further modifications may be made thereto without departing from the spirit of the invention, and it is intended to claim all such changes and modifications as fall within the scope of the invention. For example, any formulas given above are merely representative of procedures that may be used. Functionality may be added or deleted from the block diagrams and operations may be interchanged among functional blocks. Steps may be added or deleted to methods described within the scope of the present invention. [81] Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms. 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