Adaptive recognition dictionary update apparatus for use in mobile unit with a tuner
First Claim
1. An information apparatus for use in mobile unit, which includes a broadcast receiver mounted on a mobile unit for receiving a broadcasting signal containing at least a broadcasting station name, a dictionary registering the broadcasting station name, and a recognition section which carries out, referring to the dictionary, tuning to the broadcasting station associated with the broadcasting station name, said information apparatus for use in mobile unit comprising:
- a dictionary update section for updating the dictionary in response to reception of the broadcasting signal, where said update section has an update frequency, which determines how often to update said dictionary in a given time period; and
a dictionary update deciding sectionfor deciding, based on an update mode during said updating, whether any change occurs between the broadcasting station transmitting the broadcasting signal and the update mode or not, andfor calculating, if any change occurs, a new update frequency in response to a traveling condition of the mobile unit or to a receiving condition of the broadcasting signal.
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Accused Products
Abstract
An information apparatus for use in mobile unit, which is mounted on a mobile unit, includes a broadcast receiver receiving a signal containing a station name; a recognition dictionary registering the station name; and a recognition section that, referring to the dictionary, tunes to the station associated with the station name. The apparatus further includes a recognition dictionary update section updating the dictionary in response to signal reception; and a dictionary update deciding section that decides, based on the update mode of the dictionary during updating, if any change occurs between the station transmitting the signal and the update mode, and alters, if change occurs, an update frequency of the dictionary by the dictionary update section in response to a traveling condition of the mobile unit or to a receiving condition of the signal.
16 Citations
13 Claims
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1. An information apparatus for use in mobile unit, which includes a broadcast receiver mounted on a mobile unit for receiving a broadcasting signal containing at least a broadcasting station name, a dictionary registering the broadcasting station name, and a recognition section which carries out, referring to the dictionary, tuning to the broadcasting station associated with the broadcasting station name, said information apparatus for use in mobile unit comprising:
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a dictionary update section for updating the dictionary in response to reception of the broadcasting signal, where said update section has an update frequency, which determines how often to update said dictionary in a given time period; and a dictionary update deciding section for deciding, based on an update mode during said updating, whether any change occurs between the broadcasting station transmitting the broadcasting signal and the update mode or not, and for calculating, if any change occurs, a new update frequency in response to a traveling condition of the mobile unit or to a receiving condition of the broadcasting signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of updating a broadcast station dictionary in a mobile unit, which includes a broadcast receiver mounted on a mobile unit for receiving a broadcasting signal containing at least a broadcasting station name, the dictionary registering the broadcasting station name, and a recognition section which carries out, referring to the dictionary, tuning to the broadcasting station associated with the broadcasting station name, said method comprising:
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determining an update mode of a dictionary update module, where said update module has an update frequency which determines a rate at which said update module updates said dictionary; determining, based on identifying information extracted from said broadcasting signal and said update mode, any change in the broadcasting signal; updating the dictionary with said update module based on said update mode and said identifying information; calculating, based on said determined change, a new update frequency of the dictionary update module, wherein said determined change includes information representing at least one of a receiving condition of the broadcasting signal and a travel condition of the mobile device.
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Specification