Abstract: According to one aspect, embodiments of the invention provide an inverter comprising an input, an output, a plurality of DC busses, a mid-point bus, an LC filter, a common node coupled to the LC filter, a plurality of switches coupled to the plurality of DC busses and the common node, a bidirectional switch coupled between the mid-point bus and the common node, and a controller configured to operate the plurality of switches and the bidirectional switch in a first mode of operation to generate a voltage at the common node at a first positive DC voltage level, in a second mode of operation to generate the voltage at a second positive DC voltage level, in a third mode of operation to generate the voltage at a first negative DC voltage level, and in a fourth mode of operation to generate the voltage at a second negative DC voltage level.

Abstract: According to one aspect, embodiments of the invention provide an inverter comprising an input, an output, a plurality of DC busses, a mid-point bus, an LC filter, a common node coupled to the LC filter, a plurality of switches coupled to the plurality of DC busses and the common node, a bidirectional switch coupled between the mid-point bus and the common node, and a controller configured to operate the plurality of switches and the bidirectional switch in a first mode of operation to generate a voltage at the common node at a first positive DC voltage level, in a second mode of operation to generate the voltage at a second positive DC voltage level, in a third mode of operation to generate the voltage at a first negative DC voltage level, and in a fourth mode of operation to generate the voltage at a second negative DC voltage level.

Abstract: Sending updates associated with a transaction platform to a distribution group of users associated with a messaging service is disclosed, including: receiving an indication of an update associated with a store associated with a transaction platform from a server associated with the transaction platform; in response to the indication, identifying a distribution group of one or more users associated with a messaging service and wherein the distribution group has a binding relationship to the store; determining respective one or more devices corresponding to the one or more users of the distribution group; and sending the update to the respective one or more devices, wherein the update is configured to be displayed within a respective messaging application executing at each of the respective one or more devices.

Abstract: Systems and methods for inferring category synonyms from prior result data may include identifying prior query data including query information and category information relating to the prior result data; determining whether the query information is a synonym for the category information; and using the query information and the category information in subsequent search requests if it is determined that the query information is a synonym for the category information.

Abstract: Systems and methods for inferring category synonyms from prior result data may include identifying prior query data including query information and category information relating to the prior result data; determining whether the query information is a synonym for the category information; and using the query information and the category information in subsequent search requests if it is determined that the query information is a synonym for the category information.

Abstract: Systems and methods for inferring category synonyms from prior result data may include identifying prior query data including query information and category information relating to the prior result data; determining whether the query information is a synonym for the category information; and using the query information and the category information in subsequent search requests if it is determined that the query information is a synonym for the category information.

Abstract: Systems and methods for inferring category synonyms from prior result data may include identifying prior query data including query information and category information relating to the prior result data; determining whether the query information is a synonym for the category information; and using the query information and the category information in subsequent search requests if it is determined that the query information is a synonym for the category information.

Abstract: Systems and methods for inferring category synonyms from prior result data may include identifying prior query data including query information and category information relating to the prior result data; determining whether the query information is a synonym for the category information; and using the query information and the category information in subsequent search requests if it is determined that the query information is a synonym for the category information.