TransactionsIP LLC is pleased to present the exclusive patents for sale (together or separately) on “SPEECH RECOGNITION AND VOICE RESPONSE TECHNOLOGY” which includes Patents US8503665 and US9305553, assigned to WILLIAM S. MEISEL. The IP relates to improving speech recognition accuracy in automated customer service and other applications and providing flexible voice responses in an automated interactive conversation using speech recognition and text-to-speech generation for marketing, information, or entertainment purposes.
A major trend is automated systems interacting with users in spoken human language in a number of channels, e.g., customer service calls to contact centers and interactive “digital assistants” reached through mobile phones or web sites. Separately, transcription into text of voice files such as those dictated by doctors or recorded in call centers allows better use of that information in digital systems.
Patent 9305553 describes a way to improve the accuracy of speech recognition by first identifying caller types and then using speech engines tuned to those types. For example, a caller may have a specific accent and speech recognition tuned to that accent can be more accurate than speech recognition that tries to handle all accents and the speech recognizer tuned to this category can be more compact and efficient. The method does not require that such differences in speech be identified in advance, but identifies them empirically using unsupervised learning (“clustering”) using a method specific to this task. The categories once generated can be associated with an individual to choose the appropriate engine for a user without further analysis when the user interacts with a speech recognition application.
As speech recognition has gotten to levels comparable with human accuracy, the use of the technology has accelerated to the point that it can be used to engage a user in an automated conversation, where the spoken response of the system varies depending both on what the user says and previous context. Patent 8503665 describes a method of making the responses more flexible and updating them more easily to change or add content. Such flexibility makes applications such as technical support or interactive advertising or entertainment more effective and efficient.