DE4014389A1 - Processor-controlled colour TV receiver with remote control - has input and output control coupled to central control, whose release terminal is coupled to decoder - Google Patents

Abstract

The microcomputer (1) of the TV receiver is actuated by remote control (3) and is coupled to a central control (4) by an I/O control unit (2). The release terminal (CE) in the central control is coupled to a decoder (9). The central control is coupled to operating memories (10-12) via address and data buses, and to a sync. signal generating circuit via data bus. A decoder (5) is coupled to the release terminal of the sync. signal generating circuit, the I/O control and a screen control (7). An R, G, B terminal of the screen control is linked to the CRT (15) via a switching part (14). The screen is thus actuated to a required time by birthdays, anniversaries etc., using a reserved watching function and memories of a telephone recording for the display. ADVANTAGE - Multi-function TV receiver for versatile program selection.

Description

The invention relates to a color television set, in particular on a color television set that is dual Processor is operated and in particular on a television set, the one on the screen at a specific date Reserved view function and a memory with wedding days, Birthdays, etc., and the other TV viewers through realistic hues and sounds Selecting an appropriate video and audio output, by a special hue or noise is emphasized with the content of the television program (such as films, dramas, news, sports) related stand.  

A multi-purpose overlay technique is used in television sets used to convert those selected by a remote control Channels, the volume-dependent graphic pattern and the hours in character information selected by a timer with the help of a program and overlay the same to the actual visual signal, whereby they are repeatedly displayed on the screen.

However, since the scope of the function is extremely limited and is simple, it was only for a high-priced color television used. Furthermore, it is uncomfortable for viewers who Input elements of various color control units including Contrast, brightness, color, tone and sharpness manually and repeats while observing the color balance adjust on the screen.

Furthermore, an audio circuit is only a device for listening to different sounds of all radio programs within a common frequency band, it sounds so monotonous and is something of the conventional View removed.

As a result, both manufacturers and consumers want new high-tech television sets, the new pictures and a realistic mood enable.

So that the disadvantages of television sets are overcome can and a high-tech (high-tech) television can be offered without the previous restrictions, a multifunction television set is provided according to the invention, where a prescribed channel is in a program is saved at a previously agreed time  Is shown using a remote-controlled micom that a storage device for storing wedding days or birthdays and on a prescribed Represents date or on the previous day and various document storage functions for everyday Live like a phone book or an address book having. It is also from the brightness signal and the frequency characteristic is the mean for the standard image according to the type of television program (sports, music, Films, dramas, news, etc.) and a tough one or soft hue of the broadcast video with the help a stored program according to the type of television program (Sports, music, films, dramas, news, etc.) selected.

So that an audio output corresponding to the video is generated by expanding the storage capacity the color tone frequency depending on the type of television program taken an average of the spectrum and in the Memory stored so that the data obtained is of audio quality can be selected by a remote control can that they are appropriate for the content of the broadcast Programs.

According to a development of the invention, particularly advantageous solution to the problem is common to a Micom with selection control responsive to a mode selection signal provided for remote control; it is a dual process functional unit for total processing for presentation the sign for reserved viewing, for a telephone directory, for birthdays, wedding days in one store provided at a desired time; a video tape selection processing unit, using the PWM control method  to output the color data and emphasize a special one Color tone that corresponds to the transferred image is provided; an audio selection processing unit for selection suitable audio data in the memory for each type of TV programs such as show programs, dramas, films, sports programs is provided.

Further features and advantages of the invention result itself from the description of an embodiment based on the figures. From the figures shows

Fig. 1 is a diagram of the data processing block, the service function unit which this embodiment of the invention is operated by the method according to the double;

Fig. 2 is a circuit diagram of a tape selection unit for the image according to this embodiment of the invention;

Fig. 3 is a circuit diagram of a band selecting unit for the clay in accordance with this embodiment of the invention;

Fig. 4 is a flow chart for each service function.

Fig. 1 shows a block diagram of the data processing unit for a dual method of service functions, in which both a memory mapping program for storing the data for a pre-arranged viewing, as well as the representation of a telephone directory, of birthdays, anniversaries and symbols are provided on the screen at a desired time are.

A screen control unit 7 , a synchronous signal generator circuit 6 and an input / output control unit (I / O control unit 2 ) are connected to one another by a data address bus with a central control unit 4 and an operating memory 10, 11, 12 . The I / O control unit 2 is connected to a Micom (microcomputer with receiving unit for remote control) 1 which receives a signal from the remote control 3 for exchanging data signals,,, and is also connected to the signal generating circuit 6 for applying an interrupt signal thereto connected. An interruption control signal INT from the central control unit 4 goes through a decoder 9 to common release connections (CE) of the operating memory 10, 11, 12 .

A decoder 5 , which converts coded signals into corresponding control signals, is connected to the signal generator circuit 6 for driving the circuit, the I / O control unit 2 and a common release terminal (CE) of the screen control unit 7 . The central control unit 4 receives a periodic signal from the synchronizing signal generating circuit 6 when no special signal is applied from the Micom 1 so that the operating memories 10, 11, 12 are periodically checked, and it outputs a reserved value to the screen control unit 7 according to an assigned address , whereby data stored in the operating memory 10, 11, 12 , such as a programmed birthday, wedding day, telephone directory, are displayed on the screen.

As is apparent from Fig. 2, in the video tape selection processing unit, a clock terminal CL, an enable terminal CE and a data terminal D of the Micom 1, which are synchronized by a signal transmitted from a remote control 3 signal, via pull-up resistors R ₁- R ₃ to which a electrical supply Vc is connected to a D / A converter unit 17 , the transmission being carried out by an internal IM bus interface 18 to an 8-bit D / A converter 20 . An output terminal X _out and an input terminal X _in the Micom 1 are connected to an oscillator Z and a buffer 16 , which have capacitors C ₁- C ₄, resistors R ₄- R ₅ and a transistor Q ₁. The output signal at X _out is led to the 8-byte D / A converter 20 under the control of a clock driver 19 of the D / A converter unit 17 . Each output X _{out of} the D / A converter 17 is connected to corresponding resistors R ₆- R ₈, R ₉- R ₁₁, R ₁₂- R ₁₄, R ₁₅- R ₁₇ and R ₁₈- R ₂₀, which again by a Low-pass filter unit 22 , the capacitors C ₅- C ₁₆ and coils L ₁- L ₅, with a brightness connection B , a contrast connection C , a color connection Co , a color connection Ti , a sharpness connection Sh are connected, whereby a color according to the mood of the exposed Programs can be selected by a video mode selection switch on the remote control 3 .

As shown in Fig. 3, the sound selection processing selection unit is designed so that an average value for the volume is selected for an appropriate sound that matches the content of the television program.

Switching signals of the connections AD ₁, AD ₂ of the micom 1 are fed to an integrated audio signal circuit 24 , which is then connected to a high-pass band 26 , a pass band 27 , a low-pass band 28 and a medium to high-pass band 29 , an equalization circuit or an equalizer 25 , which is characterized by volume. The other end of the respective band pass 26-29 is acted upon by a left and a right phonetic signal L ₁ R ₁, whereby a sound is selected which corresponds to the atmosphere of the television program by actuating an audio mode selection switch arranged on the remote control 3 .

The device according to the invention with the above composition operates as follows.

If the switch of the remote control 3 is actuated when operating a television set, a receiver for the remote control of the Micom 1 converts the received signals into digital signals that can be read by the I / O control unit 2 and applies these to the I / O Control unit 2 .

Then, the I / O control unit 2 applies an interrupt signal INT to the control unit 4 for checking the programs stored in the operating memory 10-12 through an address bus.

If no interrupt signal INT is received by the I / O control unit 2 , the central control unit 4 checks the EEPROM 12 according to the designated address for outputting the reserved or stored data according to a periodic signal INT generated by the synchronous signal generator circuit 6 .

Assuming that a channel conversion signal or a signal for changing the television channel is input from the remote control 3 , the central control unit 4 operates the EEPROM 12 as explained above, so that the central control unit 4 converts the screen representation according to the channel conversion signal which is received from the remote control 3 is entered.

When an optional code or signal is input from the remote control 3 to the Micom 1 , the Micom 1 converts it to a code that is directed by the central control unit 4 and generates a transfer clock RXCA (which is from the I / O Control unit 2 is received), and its output X _out transfers the outgoing data RXDA byte by byte to the I / O control unit 2 .

When a value is input from the Micom 1 to the I / O control unit 2 , an interrupt signal becomes to interrupt the routine executed by the central control unit 4 and to perform the reception service.

Upon receipt by the Micom 1 , an RTS signal from the I / O control unit 2 for executing a service routine for receiving data based on the generated RTS signal generates a receive clock at the Micom 1 and receives incoming data byte by byte. If the I / O control unit 2 has received a value from the Micom 1 , an interrupt signal INT for receiving a value of the service routine is automatically generated by the central control unit 4 .

At this point, the receive service routine notifies the I / O controller 2 that the read mode is at the 92nd address of the I / O ports that designate the I / O controller 2 and receives data at the 90th address. When transmitting, it notifies the I / O controller 2 that the write mode is at the 90th address and transmits data through the 90th address.

After such a transmitted value is input into a reception buffer of the I / O control unit 2 and all are recorded while the synchronization or is in progress, the central control unit 4 has the I / O control unit 2 generate the RTS signal, whereby it outputs a low level interrupt signal which Micom 1 delivers.

Upon receiving a value from the Micom 1 , the central control unit 4 decides whether the value stored in the buffer of the I / O control unit 2 is to be stored in a RAM or an EEPROM of the operating memory 10-12 , and generates a vector address to pass through save the data bus.

The data stored in the operating memory 10-12 by the data bus are then input to the screen control unit 7 in response to an enable signal CE of the decoder 5 . The central control unit 4 goes back to the step which it carried out before the service routine, and it resumes the interrupted routine.

The RAM of the operating memory 10-12 , which uses an SRAM with an associated 8 K byte at C 000 - DFFF , is used for the temporary storage of the data read by the I / O control unit 2 , or for arranging the data by storing, changing , Erase or completely re-enter the entire data EEPROM of the operating memory 12 , 8 K bytes of F 000 - FFFF being used to permanently reserve or store the data to be stored.

When the data transmitted through the data bus is input to the screen control unit 7 , the input / output part using the A 0 - A 3 addresses accesses the screen control unit 7 .

If, for example, the connections A 0 , H are assigned, the connection 0 of the screen control unit 7 is acted upon by the address line from A 0 , A 1 , access being made to a video RAM 8 which is subordinate to the screen control unit 7 and is derived from A 2 - A 7 has formed CSR, CSW, and IQRD, RD and WR decide whether the read or write mode is selected for outputting the RGB signal.

The screen control unit 7 according to the invention can use a video RAM 8 of up to 128 K bytes in the bit mapping method.

The screen control unit delivers a synchronized R.G.B. Output that is composed of the vertical synchronizing signal and the horizontal sync signal of the TV signal, the R.G.B. output, i.e. the TV signal by a YS Signal is switched.

The video RAM 8 allocates 32 K bytes for each screen and considers this as one page. Page 0 is for reading and writing data that is actually displayed, while page 1 is for storing the style of the characters obtained from the central control unit 4 at the beginning of the program.

The character or image type of the R.G.B. signal is indicated by the internal data bus with a code that identifies the color, output on page 0 for display on the screen.

The flowchart in Fig. 4 describes the above method in further detail.

When a value is input through the remote controller, the screen control unit 7 raises the YS signal, separates the signal to be output from the screen control unit 7 to a television, and initializes the central control unit 4 and the operation memory 10-12 . Then the initial values of the RAM of the operating memory 11 are set and it is checked whether the system is operating normally.

If the program is found abnormally, it is canceled, while the power supply for the TV is switched on and the next activity is carried out if the program is normal and all assigned Programs exist.

Upon receipt of a remote control signal, the central control unit 4 reads a mode from the RAM of the operating memory 10-12 , branches to a register according to the mode value and switches on the main voltage supply.

The central control unit 4 then judges whether the TV / AV mode, the reserved observation mode, the telephone directory mode or the birthday or anniversary reservation mode is present.

If the selected mode is the TV / AV mode, it is checked according to the procedure shown in Fig. 4D whether it is reserved or stored, and the changed data input from the remote controller 3 is recorded or the stored data is output.

Fig. 4E and 4F show the procedure for changing and reserving or storing the data stored in the EEPROM memory 12 of the operating channel data.

A numeric channel value contains a value like one Phone number, a birthday, an anniversary what depends on the mode selection.

Accordingly, the inputted data is outputted by the corresponding routine when the state of the system of the initialization routine stage is confirmed and a stored value is recovered as shown in FIGS. 4E, 4F, and the outputted data becomes on the CRT 15 represented by the screen control unit 7 and a switching part 14 .

For Fig. 4G shows. B. the program for displaying the data of a birthday or anniversary. As soon as the defined value is read from a data address of the EEPROM, the value is output on the Micom 1 by the central control unit 4 and the I / O control unit 2 .

Consequently, messages are displayed as often as the number of values indicated by the message key, the Micom 1 starts a melody unit 16 and the screen data are displayed on the cathode ray tube 15 by the screen control unit 7 and the switching part 14 .

If the data has been displayed on the screen without interruption, the RAM of the operation memory 11 is read out as shown in Fig. 4H.

According to the method described above, the invention enables a multiple function such as reserved viewing, storing and displaying birthdays, telephone numbers and anniversaries. As shown in Fig. 2, it also enables a video selection method for placing the heavy weight on a certain color of the screen, in which the color is selected hard or soft, as is the mode of the transmitted program (sports, news, drama, music, Films). The data program mode is divided into standard, dark, brilliant, soft and manual, each of which has an associated code with a particular amount of brightness, contrast, color, tone and sharpness to determine the hue. The code decision is designated depending on the mode based on the address contained in the Micom 1 .

Table 1

In the table above, X denotes an example of an optionally labeled step. When a news program is running on the TV, the standard type is selected by the remote control 3 .

Then the Micom 1 receives a control signal, designates the output address of the D / A converter unit 17 for controlling a signal with the above amounts of brightness, contrast, color phase and density as O, A 0 , A 1 , A 2 , A 3rd

Table 2

If an output part is then determined, the Micom 1 determines the output step of the PWM signal. Assuming that the brightness control signal level for the standard state is designated as the middle level, namely the 31st step out of a total of 64 possible steps in the Micom 1 , the data code "011111" is output via the data connection D (see Table 1).

If the contrast control signal level as the 39th step (see Tab. 1) is the data code "1000111" issued. When the color control signal level and the tone control signal level as the 32nd and 34th, respectively Step will be designated accordingly, the data codes "100000" and "100010" output, each of which it is assumed that a total of 64 possibilities for the PWM signal are present.

In this way, the individual steps for the dark, light, soft and manual type determined, and the manual type in particular is referred to if the characteristic of the color tone depends on the desired Selection of the viewer should be set.

The above selected mode or status data, together with the control signals output by the clock connection CL and the release connection CE of the micom 1, are successively input to the D / A converter unit 17 through the data connection D.

A 4.19 MHz signal generated by the oscillator Z is output from the output terminal X _{out of} the micom 1 and input into the clock driver 19 of the D / A converter unit 17 through the buffer 16 .

Then, the IM bus interface unit 18 of the D / A converter unit 17 applies a series of incoming step data to the 8-bit converter 20 .

The 8-bit converter 20 converts the applied step data into the PWM signal by the 4.19 MHz of the signal applied by the clock driver 19 .

The PWM signal is output at each output X _out . The 8-bit converter 20 of the D / A converter unit 17 converts on the left side of the output as a step designated by the Micom 1 among the 64 steps into the PWM signal and outputs it through a buffer 21 .

For example, assuming that the brightness control signal level for the standard type is designated as step 31 , the data code "011111" is converted into the PWM signal and output.

Thereafter, the low-pass filter unit 22 filters the PWM signal output from the 8-bit D / A converter 17 and outputs an alternating current that is supplied to the chrominance circuit unit 23 . By performing the above method, a designated step for the contrast, color, tone and sharpness for the standard type is output and a changed signal is output on the screen.

Depending on the preference of the viewer, this can Band of the field signal to be displayed on the screen be selected to display a more realistic picture becomes.

The sound selection processing is carried out so as to respond to the circumstances of the broadcast program, as shown in Fig. 3.

As soon as the audio program button on the remote control 3 is touched, the Micom 1 executes a main program depending on a micro program sequence. Through its Adiosignal-oscillation connection ( AD ₁, AD ₂) four types of switching signals are emitted: a high-high signal, which selects the low-pass filter 28 of the equalizer 25 , a high-low signal, which selects the medium band-pass filter 27 Low-high signal that selects the middle to high pass 29 and a low-low signal that selects the high pass 26 .

According to a switching signal from the audio signal oscillation terminal ( AD ₁, AD ₂) of the micom 1 , an audio signal of each frequency band, which are defined in the equalizer 25 , is selected, it is then applied to the relevant chip of the integrated audio signal circuit 24 .

The following explains the four types of signals through each step. When music is broadcast as in a show program, the viewer presses the audio program button on the remote control 3 once. A high-high signal, selected by the program executed by the Micom 1 , is applied through the audio signal oscillation terminal ( AD 1 , AD 2) to the integrated audio signal circuit 24 which selects the chip so that an audio signal from the Low pass 28 is delivered to the right and left speakers (not shown in the figure). By emitting an audio signal in which the heavyweight lies on the low-pass filter 28 , music with full charisma can be captured in the show program.

At the same time the output of a high-high signal through the audio signal vibration connection ( AD ₁, AD ₂) of the Micoms 1 OSD characters (on screen display characters) are output, which correspond to the audio signal and the characters "music" on the Show screen.

When the television program changes into a movie and the viewer presses the audio program button again, a high-high signal is output through the audio signal oscillation terminal ( AD 1, AD 2) and supplied to the integrated audio signal circuit 24 .

Then, the low pass 28 of the audio signal supplied to the music is stopped by the integrated audio signal circuit 24 and converted into a medium band pass 27 of the audio signal, thus presenting a full-atmosphere sound suitable for a broadcast film and the OSD -Sign "film" is shown on the screen.

It is assumed that a drama program is being broadcast, then one presses the audio program button again, that is three times in total, the audio signal oscillation connection ( AD 1, AD 2) apply a low signal or a high signal to the integrated audio circuit 24 at. Upon receipt of the low-high signal, the integrated circuit 24 selects a medium to high pass for the audio signal and feeds it to the speaker, thereby producing a sound suitable for the drama, and at the same time the OSD characters become "drama" shown on the screen.

Finally, it is assumed that messages are transmitted, if one then presses the audio program button of the remote control 3 with which the program "Drama" had previously been selected, the low-high signal becomes a low-low signal on the audio signal -Vibration connection ( AD ₁, AD ₂) of Micom 1 converted and supplied to the integrated audio circuit 24 . At the same time, the high-pass filter for the audio signal is selected for the integrated audio circuit 24 and output to the loudspeaker.

An OSD video signal is used, which indicates which Audio signal is selected in the present case "Messages" through the R, G, Y connectors on the screen the TV output.

The television set according to the invention can perform various service functions perform like: previously arranged viewing, Telephone directory, memory of birthdays and anniversaries, Presentation of the saved data on the screen on a designated date or the day before, which means important data are recalled to the viewer.

Furthermore, in accordance with the content of the broadcast Programs such as music, film, drama, news, Sport a specific color feature, the heavyweight  sets the appropriate shade for it by remote control be selected so that a realistic and lively Image is generated; with respect to a noise signal according to of the screen signal that relates to the content of the transmitted Programs, selects a storage device, which chooses the mean value of the hue frequency level, one after the other the exit that corresponds to the mood of the transmitted program fits so that a lively and lively sound effect is generated.

Therefore, according to the invention, it is possible to use a high technology television with various service functions and automatic Creating selection of audio and video functions so that the original image is captured.

Claims (3)

1. Color television set with a Micom ( 1 ), which is operated by a remote control ( 3 ) and is connected by an I / O control unit ( 2 ) to a central control unit ( 4 ); A release connection (CE) in the central control unit ( 4 ) is connected to a decoder ( 9 ), the central control unit ( 4 ) via address and data buses with operating memories ( 10, 11, 12 ) and via a data bus with a synchronous signal generator circuit ( 6 ) connected is; a decoder ( 5 ) is connected to the release terminal (CE) of the synchronizing signal generator circuit ( 6 ), the I / O control unit ( 2 ) and a screen control unit ( 7 ) and an RGB connection of the screen control unit ( 7 ) to a cathode ray tube (CRT 15 ) is connected via a switching part ( 14 ), whereby the screen ( 15 ) is actuated at a desired time using a reserved view function and the memory of a telephone directory, of birthdays, anniversaries, etc. and these are displayed. 2. Color television set according to claim 1, characterized by a video tape selection circuit in which a clock connection (CL) , a release connection (CE) and a data connection (D) at X _{out of} the micom ( 1 ) by a signal from the remote control ( 3 ) can be set, with a D / A converter unit ( 17 ) by resistors ( R ₁- R ₃), which are supplied with electrical power (Vc) through an IM bus interface ( 18 ) an 8-bit D / A converter ( 20 ) is supplied, a terminal X _out and a terminal X _in the micom ( 1 ) being connected to an oscillator (Z) and a buffer ( 16 ), the capacitors ( C ₁- C ₄) , Resistors ( R ₄- R ₅) and a transistor ( Q ₁) and connected to the D / A converter ( 20 ), an output X _{out of} the D / A converter ( 20 ) being connected via resistors ( R ₆- R ₂₀) with a low-pass filter unit ( 22 ) which has capacitors ( C ₅- C ₁₆) and coils ( L ₁- L ₅), and a chrominance circuit ( 23 ) having a brightness connection (B) , a contrast connection (C) , a color connection (Co) , a sound connection (Ti) and a sharpness connection (Sh) . 3. Color television set according to claim 1 or 2, characterized by an audio band selection circuit in which the vibration connections ( AD ₁, AD ₂) of the micom ( 1 ), which contains an audio control signal program, are connected to an integrated audio signal circuit ( 24 ), which is further connected to an equalizer circuit ( 25 ) is connected to a high-pass filter ( 26 ), a medium-high-pass filter ( 29 ), a band-pass filter ( 27 ) and a low-pass filter ( 28 ), wherein data of a tone-color frequency level suitable for a broadcast television program by selecting a suitable band on the basis of a Band selection signals from the audio signal vibration terminals ( AD ₁, AD ₂) are output.