Patent EP0219703A1 successfully refreshed from Google Patents.
EP0219703A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improved television receiver
Assignee: Sisvel SpA
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Filing: 1982-06-22
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Granted: —
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Expires: 2002-06-22
Abstract
Abstract Television receiver comprising a control unit (3) connected to circuit means (4,5) for controlling the display of alphanumerical characters, connected to television signal tuning means (8), to first electronic memorising means (7) for memorising at least data relative to the tuning of said television signals, and to an operating unit (1,2) for receiving data from the user, and in which in response to a first coded control signal coming from the operating unit (1,2) and corresponding to an identifying label composed of alphanumerical characters and representative of the station which transmits the said television signal, the control unit (3) searches and extracts from the first memorising means (7) the data relative to the tuning of the television signal and sends them to the tuning means (8), in orderto correctly tune the station, and supplies the circuit means (4, 5) with codes aptto obtain the display of the identifying label.
Inventors
- 👤 Pietro Belisomi
- 👤 Attilio Farina
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 05:07
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/22; G09G5/222; H; H03; H03J; H03J1/00; H03J1/0008; H03J1/0016; H03J1/0041; H03J1/005; H03J5/00; H03J5/02; H03J5/0245; H03J5/0272; H03J5/0281
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
158 words
Television receiver comprising a control unit (3) connected to circuit means (4,5) for controlling the display of alphanumerical characters, connected to television signal tuning means (8), to first electronic memorising means (7) for nemorising at least data relative to the tuning of said television signals, and to an operating unit (1,2) for receiving data from the user, characterized in that, in response to a first coded control signal coming from the said operating unit (1,2) and corresponding to an identifying label composed of alphanumerical characters and representative of the station which transmits the said television signal, the said control unit (3) searches and extracts from the said first memorising means (7) the data relative to the tuning of the said television signal and sends them to the said tuning means (8), in order to correctly tune the said station, and supplies the said circuit means (4,5) with codes apt to obtain the display of the said identifying label.
Claim 2
Dependent Claim
158 words
Television receiver comprising a control unit (3) connected to circuit means (4,5) for controlling the display of alphanumerical characters, connected to television signal tuning means (8), to first electronic memorising means (7) for nemorising at least data relative to the tuning of said television signals, and to an operating unit (1,2) for receiving data from the user, characterized in that, in response to a first coded control signal coming from the said operating unit (1,2) and corresponding to an identifying label composed of alphanumerical characters and representative of the station which transmits the said television signal, the said control unit (3) searches and extracts from the said first memorising means (7) the data relative to the tuning of the said television signal and sends them to the said tuning means (8), in order to correctly tune the said station, and supplies the said circuit means (4,5) with codes apt to obtain the display of the said identifying label.
Claim 3
Dependent Claim
42 words
Television receiver according to claim 1 characterized in that the said circuit means (4,5) are of the type apt to display alphanumerical. data formed by characters which can comprise all the letters in the alphabet and the numbers from 0 to 9.
Claim 4
Dependent Claim
118 words
Television receiver according to claims 1 and 2, characterized in that, in response to a second coded control signal, the said control unit (3) selects a first group of cells in the said first memorising means (7), associated to a second group of cells of said first memorising means (7) in which data relative to the tuning of said television signal can be memorised, and memorises therein a sequence of codes corresponding to the alphanumerical characters received from the said operating unit (1,2) and forming the said label representative of the station, so as to be capable of tuning in the said television signal by supplying the said centrol unit (3) with codes corresponding to the said label.
Claim 5
Dependent Claim
38 words
Television receiver according to claim 3, characterized in that the said first memorising means (7) comprise non-volatile read-write memory circuits capable of preserving the memorised data even in the event of lack of electric supply from the mains.
Claim 6
Dependent Claim
57 words
Television receiver according to claim 4, characterized in that, in response to a third coded control signal from the said operating unit (1,2), the said control unit (3) selects the said second group of cells on said first memorising means (7) and memorises therein data relative to adjustment levels of the said receiver, like brightness or volume.
Claim 7
Dependent Claim
62 words
Television receiver according to any one of the preceding claims, characterized in that the said control unit (3) sends control signals to a frequency synthesis circuit (8) and that the said tuning data is represented by a division number which must be supplied to a programmable divider on the frequency synthesis circuit (8) for obtaining the tuning of the desired television signal
Claim 8
Dependent Claim
64 words
Television receiver according to any one of the claims from 1 to 5, characterized in that the said control unit (3) supplies control signals to a voltage synthesis circuit (8) and that the said tuning data is represented by a voltage value which must be supplied to a variable capacity circuit on a television signal selecting unit, for tuning into the desired television signal.
Claim 9
Dependent Claim
142 words
Television receiver according to any one of the claims from 3 to 5, characterized in that, in response to a fourth coded control signal from the said operating unit (1,2), the said control unit (3) prepares to receive from the said operating unit (1,2) a sequence of codes forming a possible label indicating the station to be received, selects the said first group of cells on the said first memory means (7), compares the said sequence with the content of the said first group of cells and, if the said sequence tallies with the content of a corresponding number of subsequent cells on the said first group of cells, extracts the said tuning data from the said associated second group of cells on the said first memorising means (7) and supplies it to a tuning unit for tuning into the desired station.
Claim 10
Dependent Claim
146 words
Television receiver according to any one of the claims from 3 to 5 characterized in that, in response to the said first coded control signal from the said operating unit (1,2), the said control unit (3) selects the said first group of celts on the said first memory means (7), compares the content of the said first group of cells on the said first memory means (7) with an assembly of possible values for said codes corresponding to characters contained in read-only- memory means and, in the event they tally, extracts the said tuning data from the said associated second group of cells on the said first memorising means (7) and supplies it to a tuning unit for tuning into the desired station, whereas in the event they do not tally the said data relative to the tuning is not transmitted to the said tuning unit.
Claim 11
Dependent Claim
69 words
Television receiver according to any one of the claims from 3 to 5, characterized in that, in response to the said second coded control signal from the said operating unit (1,2), the said control unit (3) supplies the said circuit means (4,5) with codes for displaying a standard message apt to request the user to supply the additional data relative to the said label representative of the desired station.
Claim 12
Dependent Claim
64 words
Television receiver according to claim 10, characterized in that, in response to each of the said additional data, the said control unit (3) sends every time to the said circuit means (4,5) the code corresponding to the character to be displayed, so as to obtain the reproduction of the said character on the display in place of the character forming the said standard message.
Claim 13
Dependent Claim
70 words
Television receiver according to claim 10, characterized in that the said control unit (3) counts the number of the said additional data relative to the said label representative of the station and, when the number reaches the value corresponding to the number of the characters forming the said standard message, memorises the received alphanumerical character codes in the said first group of cells on the said first memorising means (7).
Claim 14
Dependent Claim
77 words
Television receiver according to claim 12, characterized in that the said operating unit (1,2) has a function switch key which assigns a first or second meaning corresponding, in particular, to numbers (first) or letters of the alphabet (second) to certain keys on the said operating unit (1,2) and that the said control unit (3) memorises the switch setting in an internal memory register and changes it whenever it receives a control signal from the said switch key.
Claim 15
Dependent Claim
39 words
Television receiver according to claim 13, characterized in that the said control unit (3) assigns the said second meaning (letters of the alphabet) to the said switch setting in response to the said first or second coded control signal.
Claim 16
Dependent Claim
80 words
Television receiver according to claim 3, characterized in that, in response to a fifth coded control signal from the said operating unit (1,2), the said control unit (3) prepares to receive from the operating unit (1,2) a code corresponding to a significant program number the received station is to be assigned to, and, on the basis of the said number, prepares to select a block of cells from a third group of cells on the said first memorising means (7).
Claim 17
Dependent Claim
51 words
Television receiver according to claim 15, characterized in that, after receiving the said code corresponding to the significant program number, the said control unit (3) memorises the tuning data of the station in the said block of cells of the said third group and generates the said second coded control signal.
Claim 18
Dependent Claim
74 words
Television receiver according to claim 3, characterized in that, in response to the said first coded control signal from the said operating unit (1,2), the said control unit (3) compares the content of the said first group of cells on the said first memorising means (7) with a predetermined combination of characters contained in read-only memory means, and in the event they tally, produces a switching signal for auxiliary circuits of the said receiver.
Claim 19
Dependent Claim
59 words
Television receiver according to claim 17, characterized in that the said combination is represented by codes corresponding to characters which indicate a video recorder (VC) and that the said switching signal serves to control a switching in circuits of the said receiver, in particular synchronization circuits, which switching is apt to improve the reproduction of signals from video recorders.
Claim 20
Dependent Claim
57 words
Television receiver according to any one of the preceding claims, characterized in that the operating unit (1,2) is of the telecontrol type and that it comprises an alphanumerical keyboard apt to generate at least as many ccded control signals as the characters which can be generated by the said circuit means (4,5) and displayed on the screen.
Claim 21
Dependent Claim
53 words
Television receiver according to claim 19, characterized in that the operating unit (1,2) has a number N of keys lower than the number of the coded control signals to be generated and at least e key which serves, in combination with the remaining N-1 keys, to generate all the said coded control signals.
Claim 22
Dependent Claim
33 words
Television receiver according to claim 19, characterized in that the operating unit (1,2) has a number N of keys at least equal to the number of the coded control signals to be generated.
Claim 23
Dependent Claim
45 words
Television receiver according to any of the claims from 19 to 21, characterized in that the operating unit (1,2) comprises a telecontrol transmitter (1) comprising the said alphanumerical keyboard and circuits for coding and transmitting by air and a receiver circuit (2) comprising an amplifier.
Claim 24
Dependent Claim
39 words
Television receiver according to claim 22, characterized in that the said coding and transmitting circuit of the said operating unit (1,2) comprises an integrated circuit MC 14497 and that the said receiver circuit comprises an integrated circuit TBA 2110.
References Cited (Backward Citations)
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