US 2006/0242324 A1 · Data replacement output apparatus and method

Abstract

The data replacement output apparatus 10 determines whether to perform a sequential output of replacement data based on a comparison between (i) the number of units of data constituting replacement object data received during a time period and (ii) the number of units of data constituting replacement data output during the time period. The determination is made each time replacement object data is received while the sequential output of data is not performed. If it determines to perform the sequential output, the data replacement output apparatus 10 outputs replacement data each time data constituting a data stream is received, and outputs non-replacement-object data each time data constituting non-replacement-object data is received while the sequential output is not performed; if it determines not to perform the sequential output, it outputs non-replacement-object data each time a unit of data constituting the data stream is received.

Claims23

Dependent claims

A data replacement output apparatus for receiving a data stream composed of replacement object data and non-replacement-object data, replacing the replacement object data with replacement data, and outputting the data stream containing the replacement data, wherein each of the replacement object data, the non-replacement-object data, and the replacement data is composed of a plurality of units of data having the same size, the data replacement output apparatus comprising:

a determining unit operable to determine whether to perform a sequential output of a predetermined number of units of data constituting the replacement data, based on a result of comparison between (i) a total number of units of data constituting the replacement object data that have been received during a time period from a reference time to a current time and (ii) a total number of units of data constituting the replacement data that have been output during the time period, the determination being made each time a unit of data constituting the replacement object data is received while the sequential output of data is not performed;
and
a data output unit operable to, if the determining unit determines to perform the sequential output of data, perform the sequential output of data by outputting a unit of data constituting the replacement data each time a unit of data constituting the data stream is received, operable to output a unit of data constituting the non-replacement-object data each time a u nit of data constituting the non-replacement-object data is received while the sequential output of data is not performed, and operable to, if the determining unit determines not to perform the sequential output of data, output a unit of data constituting the non-replacement-object data each time a unit of data constituting the data stream is received.

each of the replacement object data, the non-replacement-object data, and the replacement data is composed of a plurality of units of data having the same size,
the data stream contains a sequence of a plurality of units of data constituting the replacement object data,
the replacement data is composed of replacement-purpose data and dummy data,
the data replacement output apparatus comprising:
a replacement judging unit operable to judge whether a received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data or the non-replacement-object data;
a detecting unit operable to detect a number of units of data contained in the sequence that constitutes the replacement object data if the replacement judging unit judges that the received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data;
a judging unit operable to judge whether the number of units of data detected by the detecting unit is smaller than N, where N is an integer no smaller than “1”;
and
a data output unit operable to, if the judging unit judges that the number of units of data detected by the detecting unit is smaller than N, sequentially output as much units of data constituting the dummy data as the number of units of data detected by the detecting unit each time the sequence of the plurality of units of data is received, and
operable to, if the judging unit judges that the number of units of data detected by the detecting unit is larger than N, sequentially output (i) N units of data constituting the replacement-purpose data and (ii) each time the sequence of the plurality of units of data is received, as much units of data constituting the dummy data as a difference between N and the number of units of data detected by the detecting unit, and
operable to, if the replacement judging unit judges that the received unit of data belongs to the non-replacement-object data, output a unit of data constituting the non-replacement-object data each time a unit of data constituting the non-replacement-object data is received.

8 more elements

A data replacement output method for use in a data replacement output apparatus for receiving a data stream composed of replacement object data and non-replacement-object data, replacing the replacement object data with replacement data, and outputting the data stream containing the replacement data, wherein

each of the replacement object data, the non-replacement-object data, and the replacement data is composed of a plurality of units of data having the same size,
the data stream contains a sequence of a plurality of units of data constituting the replacement object data,
the replacement data is composed of replacement-purpose data and dummy data,
the data replacement output method comprising:
a replacement judging step for judging whether a received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data or the non-replacement-object data;
a detecting step for detecting a number of units of data contained in the sequence that constitutes the replacement object data if the replacement judging step judges that the received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data;
a judging step for judging whether the number of units of data detected in the detecting step is smaller than N, where N is an integer no smaller than “1”;
and
a data output step for, if the judging step judges that the number of units of data detected in the detecting step is smaller than N, sequentially outputting as much units of data constituting the dummy data as the number of units of data detected in the detecting step each time the sequence of the plurality of units of data is received, and
if the judging step judges that the number of units of data detected in the detecting step is larger than N, sequentially outputting (i) N units of data constituting the replacement-purpose data and (ii) each time the sequence of the plurality of units of data is received, as much units of data constituting the dummy data as a difference between N and the number of units of data detected in the detecting step, and
if the replacement judging step judges that the received unit of data belongs to the non-replacement-object data, outputting a unit of data constituting the non-replacement-object data each time a unit of data constituting the non-replacement-object data is received.

8 more elements

A data replacement output control program for use in a data replacement output apparatus for receiving a data stream composed of replacement object data and non-replacement-object data, replacing the replacement object data with replacement data, and outputting the data stream containing the replacement data, wherein

each of the replacement object data, the non-replacement-object data, and the replacement data is composed of a plurality of units of data having the same size,
the data stream contains a sequence of a plurality of units of data constituting the replacement object data,
the replacement data is composed of replacement-purpose data and dummy data,
the data replacement output control program comprising:
a replacement judging step for judging whether a received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data or the non-replacement-object data;
a detecting step for detecting a number of units of data contained in the sequence that constitutes the replacement object data if the replacement judging step judges that the received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data;
a judging step for judging whether the number of units of data detected in the detecting step is smaller than N, where N is an integer no smaller than “1”;
and
a data output step for, if the judging unit judges that the number of units of data detected in the detecting step is smaller than N, sequentially outputting as much units of data constituting the dummy data as the number of units of data detected in the detecting step each time the sequence of the plurality of units of data is received, and
if the judging step judges that the number of units of data detected in the detecting step is larger than N, sequentially outputting (i) N units of data constituting the replacement-purpose data and (ii) each time the sequence of the plurality of units of data is received, as much units of data constituting the dummy data as a difference between N and the number of units of data detected in the detecting step, and
if the replacement judging step judges that the received unit of data belongs to the non-replacement-object data, outputting a unit of data constituting the non-replacement-object data each time a unit of data constituting the non-replacement-object data is received.

8 more elements

A computer-readable recording medium recording therein a data replacement output control program for use in a data replacement output apparatus for receiving a data stream composed of replacement object data and non-replacement-object data, replacing the replacement object data with replacement data, and outputting the data stream containing the replacement data, wherein

each of the replacement object data, the non-replacement-object data, and the replacement data is composed of a plurality of units of data having the same size,
the data stream contains a sequence of a plurality of units of data constituting the replacement object data,
the replacement data is composed of replacement-purpose data and dummy data,
the data replacement output control program comprising:
a replacement judging step for judging whether a received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data or the non-replacement-object data;
a detecting step for detecting a number of units of data contained in the sequence that constitutes the replacement object data if the replacement judging step judges that the received unit of data belongs to the sequence of the plurality of units of data constituting the replacement object data;
a judging step for judging whether the number of units of data detected in the detecting step is smaller than N, where N is an integer no smaller than “1”;
and
a data output step for, if the judging unit judges that the number of units of data detected in the detecting step is smaller than N, sequentially outputting as much units of data constituting the dummy data as the number of units of data detected in the detecting step each time the sequence of the plurality of units of data is received, and
if the judging step judges that the number of units of data detected in the detecting step is larger than N, sequentially outputting (i) N units of data constituting the replacement-purpose data and (ii) each time the sequence of the plurality of units of data is received, as much units of data constituting the dummy data as a difference between N and the number of units of data detected in the detecting step, and
if the replacement judging step judges that the received unit of data belongs to the non-replacement-object data, outputting a unit of data constituting the non-replacement-object data each time a unit of data constituting the non-replacement-object data is received.

8 more elements

Dependencies are inferred from the claim text.

Data replacement output apparatus and method

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Data replacement output apparatus and method

Life of this patent

Abstract

Claims23