JPS6391900A - Voice reproducing device - Google Patents

Abstract

PURPOSE:To easily and exactly retrieve a storing circuit unit even if it is housed at random, by comparing successively time information of plural storing circuit units and time information which has been set, and reproducing the voice information the storing circuit unit which has coincided. CONSTITUTION:Semiconductor storing circuit units 7a, 7b for storing encoded information are constituted so as to be freely attachable and detachable, and execute a control of write and read-out of voice information and time informa tion to the storing circuit unit, a display control of a display part 3, and a retrieval of the storing circuit, etc., by a controlling circuit 8 consisting of a CPU, etc. In this state, the sound-recording time of the storing circuit units 7a, 7b to e retrieved is inputted and stored in a register 13, and thereafter, a retrieval switch is operated. Subsequently, the data which has been stored in each storing circuit unit 7a, 7b and the retrieval data are compared successive ly, and when there is found one which coincides, the time information of its storing circuit unit is displayed by the display part 3, and also, its voice informa tion is reproduced.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an audio reproduction device.

[Prior Art] Generally, a tape recorder is used to record audio and the like. In addition to recording music, tape recorders can also be used to record the cries of a newborn baby, the first words spoken, the sounds of joy when moved, the sounds of love, the chirping of birds, etc. It is also used to keep it as a memento for later.

[Problem to be solved by the invention] Tape recorders are suitable for recording music for long periods of time, but they can be used to record relatively short words, like two mementoes that you want to keep in your life, and when they are uttered. It is extremely inconvenient to record incomprehensible words in terms of portability, operability, storage stability, etc.

For example, when storing a tape, information about when it was recorded is not recorded on the tape, but must be written on a label or index. Particularly when there are a large number of tapes, in order to search for tapes from a particular date, it is necessary to go through the index one by one, making the search time-consuming.

The present invention provides an audio playback device that is portable, easy to operate, and easy to store, and that can easily search for and play back recordings recorded at a specific date and time from among a plurality of recordings.

[Means for Solving the Problems] The present invention is equipped with a plurality of removable semiconductor memory circuit units in which audio information and time information at the time when this audio information was recorded are stored in advance, and inputted by an input means. The specific time information is matched with the time information of each semiconductor memory circuit unit, and the audio information of the matched semiconductor memory circuit unit is read out and reproduced.

[Embodiment] In FIG. 1, 1 is an oscillation frequency divider circuit, 2 is a clock circuit that measures time information of year, month, day, hour, minute, and second, and 3 is a time information display section. 4 is a microphone 0on, 5 is an A/D conversion circuit, 6 is an encoding circuit for encoding audio information, 7a, 7b
... is a semiconductor memory circuit unit that stores encoded information and is configured to be detachable. Reference numeral 8 denotes a control circuit consisting of a CPU, etc., which controls writing and reading of audio information and time information into the storage circuit unit, controls the display of the display section 3, searches the storage circuit, and the like.

9 is a decoding circuit that decodes encoded audio information; 10
is a D/A conversion circuit, and 11 is a speaker.

12 is a recording start switch, a recording stop switch,
The input means includes a search switch, a key for setting the date and time, a switch for increasing or decreasing the set date and time, and the like. 13 is a search date and time register that stores the set date and time; 14 is the content of the register 13 and each storage circuit 7a;
, 7b, . . . , and 7b...

Next, the recording operation will be explained with reference to the flowchart shown in FIG. The display section 3 receives the output from the clock circuit 2 and displays the year, month, day, and current time.

Therefore, when recording is to be performed on the memory circuit unit 7a, the recording start switch is operated after the memory circuit unit 7a is installed. As a result, the contents of the clock circuit 2 are taken in and written to a predetermined address in the memory circuit 7a. Initial settings for recording are also performed, power is supplied to the microphone 4 and the A/D conversion circuit 5, and recording is started. That is, the sound picked up by the microphone 4 is converted into digital data by the A/D conversion circuit 5, encoded by the encoding circuit 6, and sequentially written into the storage circuit unit 7a. memory circuit unit)
7a has a predetermined storage capacity of about 4 seconds, and when the final address is written, an end signal is issued, or a time-up signal is generated 4 seconds after the start of recording, and the recording ends.

In the manner described above, desired audio information can be sequentially recorded in a plurality of storage circuit units.

Moreover, since the recording date and time are stored at the same time, there is no need to record it in an index or the like.

Next, the operation of selecting and reproducing a desired one from among the widths of a plurality of recorded storage circuit units will be explained with reference to the flowchart of FIG. After installing multiple memory circuit units, operate the playback switch. As a result, the number n of memory circuit units installed is counted and set.

In addition, a counter C (built in the control circuit 8) for counting the number of memory circuit units and a register R (built in the control circuit 8) for storing the mounting position of a desired memory circuit unit are cleared to perform initial settings. After inputting the recording date and time of the storage circuit unit for which the user wants to search using the key and storing it in the register 13 shown in FIG. 1, the user operates the search switch. The up (down) switch is not being operated at the moment, so
3, the date stored in each memory circuit unit is compared with the search date, and if there is a match, the contents of counter C at that time are Stored in register R.

As a result of this comparison, if there is only one item that matches the date, the time information of that memory circuit unit is
The audio information is displayed on the display section 3 shown in the figure and is also reproduced. That is, after the audio information in the storage circuit unit is read out and decoded by the decoding circuit 9, it is converted into an analog output by the D/A conversion circuit 10 and output from the speaker 11.

If there are multiple records with the same year, month, and date, sorting is performed based on the hour, minute, and second data of the corresponding memory circuit unit, and playback is performed in order from the earliest in time.

Next, if there is no matching date, the up switch or down switch is operated to advance or delay the search date. As a result, the process goes to loop B in FIG. 3, where the year, month, and date are compared, and if there is no match, the search date is increased or decreased by one day and the comparison is performed again. This operation is repeated until a match is found to search for the desired memory circuit unit. The audio information in the memory circuit unit thus searched is reproduced in the same manner as described above.

Note that a few hundred bits of storage capacity is sufficient for storing time information, and even if the storage capacity for storing voice information is reduced by this amount, there will be no inconvenience in actual use. do not have.

Note that the time information is not limited to visual display, and may be aurally reported using a speech synthesizer.

[Effects of the Invention] According to the present invention, since the time information of a plurality of memory circuit units and the set time information are sequentially compared and the audio information of the memory circuit unit that matches is played back, the recording date and time is etc., in the index, the storage circuit unit can be easily stored, and even if it is stored randomly, it can be searched easily and reliably.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the invention, and FIGS. 2 and 3 are flowcharts for explaining the operation. 4...Microphone 5...A/D conversion circuit 6...Encoding circuits 7a, 7b...Storage circuit unit 8...Control circuit 12...Input means 13...Search date and time register 14 ... Judgment means first [゛ni 1 1 2

Claims (1)

[Claims] a plurality of removable semiconductor memory circuit units for storing encoded audio information and time information when the audio information was recorded; input means for inputting specific time information; and input means for inputting specific time information; a determining means for comparing the time information and each time information in each of the semiconductor memory circuit units to determine a match; a control means for reading audio information corresponding to the determined match when the determining means determines a match; A voice reproducing device comprising a voice synthesizing means for reproducing voice information read out by a control means.