Abstract: The present invention discloses a television receiving system comprising: a smart antenna having a receiving unit that electrically switches directions of receiving television broadcasting signals and a connecting portion that is detachably connected to the receiving unit; and a television receiver couple with the receiving unit though the connecting portion and having a holding portion that holds the receiving unit detached from the connecting portion on a rear surface of the television receiver where is opposite to a front surface displaying videos.

Abstract: With a power supply provided for a smart antenna, whether the antenna is connected is determined according to whether the power supply is connected. When it is determined that the smart antenna is not connected, power supply to units related only to controlling of the smart antenna is stopped, whereby power saving is realized. Further, user's setting for discriminating kinds of antennas becomes unnecessary and, when a smart antenna is not connected, power supply for the same can be prevented.

Abstract: A television receiving apparatus 100 includes a television receiver 20, and a smart antenna 10 having directivity capable of being electrically changed so as to match radio waves to be received. A handle 50 is provided with a mechanism holding the smart antenna 10 therein, fixed to the television receiver 20 and capable of changing the distance between the smart antenna 10 and the television receiver 20 as an antenna holding box. The antenna having directivity capable of being electrically changed so as to match with radio waves to be received is disposed so that the aesthetic appearance can be improved and the signal receiving sensitivity of the antenna can be enhanced.

Abstract: The present invention discloses a smart antenna that includes: a switch unit that switches a direction for receiving radio waves; and an outer covering unit that covers the smart antenna and is made of an insulating material.

Abstract: The antenna apparatus includes first to fourth antenna elements successively arranged at regular angular intervals around the central point on the same plane and respectively having first to fourth feed points, and a phase shifter delaying the phase of the received electric wave approximately by 90 degrees. The unidirectivity of the antenna apparatus is controlled in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees by selectively connecting the first to fourth feed points, the phase shifter and a television receiver. Therefore, multipath interference in these directions can be suppressed.

Abstract: A holding part 50 fixedly holds a shaft 17 included in a smart antenna 10 on a television receiver 20. The smart antenna 10 is held fixedly by the holding part 50. The shaft 17 of the smart antenna 10 is provided with an opening 17a in a part thereof distant from a part thereof held by the holding part 50. A wiring 15a is extended outside from the shaft 17 through the opening 17a and is connected to the television receiver 20.

Abstract: Disclosed is an antenna system, including: an antenna which can switch directivity thereof when receiving an analog television broadcasting signal; a switching section to switch the directivity of the antenna; a measurement section to measure radio wave quality of the analog television broadcasting signal received by the antenna by analyzing the analog television broadcasting signal when the directivity of the antenna is switched by the switching section; a storage section to store data of radio wave quality in different directions measured by the measurement section for each channel; and a control section to control the switching section to switch the directivity of the antenna to one direction having a highest radio wave quality among the different directions corresponding to a desired channel when the desired channel is designated.

Abstract: A variable directivity antenna (2) has directivity direction angularly variable stepwise about itself. A tuner (8) selects a desired one from high frequency signals received at the antenna (2). The tuner (8) detects the level of the received signal and supplies it to a control unit (10). The control unit (10) searches for received signal levels, equal to or higher than a threshold level, of the received signal received in plural states in which the directivity of the antenna (2) is placed in different ones of directivity directions, and detects a slope of the received signal levels within a frequency range of the received signal. The control unit (10) employs the searched directivity direction for the smallest one of the detected slopes as the direction to which the antenna (2) is directed to receive the signal.

Abstract: A variable directivity antenna (2) has directivity direction variable stepwise along the circumference of a circle centered about it. A tuner (8) selects a desired one from high frequency signals received at the antenna (2). The tuner (8) detects the level of the received signal and supplies it to a control unit (10). The control unit (10) searches for reception signal levels, equal to or higher than a threshold level, of the received signal received in antenna states in which the directivity of the antenna (2) is placed in different ones of directivity directions, and detects a signal-to-noise ratio of the signal received from directions adjacent to each of the searched directivity directions corresponding to the searched signal levels. The control unit (10) employs the searched directivity direction for the highest signal-to-noise ratio as the direction to which the antenna (2) is directed to receive the signal.

Abstract: A printed wiring board is provided with a multidirectional antenna having plural directivities, and an antenna control circuit for selectively setting the multidirectional antenna for one of the directivities. The antenna control circuit is formed in a predetermined area on the printed wiring board, the antenna includes plural flat antenna elements of a predetermined length, and the antenna elements are formed on one of the opposite surfaces of the printed wiring board so as to extend radially outward from the predetermined area and connected to the antenna control circuit.

Abstract: A television receiver having an antenna function for receiving broadcast signals includes an antenna group having plural variable directivities and including plural antennas formed in plural parts on inner and outer surfaces of walls of a cabinet or nonmetallic surfaces of component parts arranged in the cabinet so as to conform to the shapes of the corresponding surfaces, respectively, and a switching control unit capable of specifying a directivity for the antenna group to receive broadcast signals by the antenna group.

Abstract: A television receiving apparatus 100 includes a television receiver 20, and a smart antenna 10 having directivity capable of being electrically changed so as to match radio waves to be received. A handle 50 is provided with a mechanism holding the smart antenna 10 therein, fixed to the television receiver 20 and capable of changing the distance between the smart antenna 10 and the television receiver 20 as an antenna holding box. The antenna having directivity capable of being electrically changed so as to match with radio waves to be received is disposed so that the aesthetic appearance can be improved and the signal receiving sensitivity of the antenna can be enhanced.

Abstract: With a power supply provided for a smart antenna, whether the antenna is connected is determined according to whether the power supply is connected. When it is determined that the smart antenna is not connected, power supply to units related only to controlling of the smart antenna is stopped, whereby power saving is realized. Further, user's setting for discriminating kinds of antennas becomes unnecessary and, when a smart antenna is not connected, power supply for the same can be prevented.

Abstract: A variable directivity antenna apparatus (1) includes an output terminal (40) at which reception signals transmitted through a coaxial cable (42) are outputted. The directivity pattern of the antenna apparatus (1) is varied in response to a directivity control signal supplied to the output terminal (40) through the coaxial cable (42). The variable directivity antenna apparatus (1) further includes changeover switches (8, 12, 14, 22, 32, 34, 38) operated to fix the orientation of directivity in a predetermined direction in response to the coupling of a power supply adapter (64).

Abstract: The present invention discloses a television receiving system comprising: a smart antenna having a receiving unit that electrically switches directions of receiving television broadcasting signals and a connecting portion that is detachably connected to the receiving unit; and a television receiver couple with the receiving unit though the connecting portion and having a holding portion that holds the receiving unit detached from the connecting portion on a rear surface of the television receiver where is opposite to a front surface displaying videos.

Abstract: The present invention discloses a smart antenna that includes: a switch unit that switches a direction for receiving radio waves; and an outer covering unit that covers the smart antenna and is made of an insulating material.

Abstract: The present invention discloses a compact digital TV tuner unit mounted on an analog receiver equipped with an analog tuner, comprising: a boxy chassis; a terminal face of the chassis facing the analog receiver; an antenna input terminal that is placed on the terminal face and that is connected to an external antenna wire; an antenna output terminal that is placed on the terminal face adjacent to the antenna input terminal and that is connected to the analog receiver; and a converter circuit whose circuit elements are placed on a loop line starting at the antenna input terminal and ending at the antenna output terminal in the chassis and that converts digital broadcast signals input from the antenna input terminal to analog broadcast signals to output the analog broadcast signals to the antenna output terminal.

Abstract: A holding part 50 fixedly holds a shaft 17 included in a smart antenna 10 on a television receiver 20. The smart antenna 10 is held fixedly by the holding part 50. The shaft 17 of the smart antenna 10 is provided with an opening 17a in a part thereof distant from a part thereof held by the holding part 50. A wiring 15a is extended outside from the shaft 17 through the opening 17a and is connected to the television receiver 20.

Abstract: The present invention discloses a display device, comprising: a display with deviated directivity in an orientation angle offering good viewability, a casing that holds the display and is placed at a plurality of angles, a direction sensor detecting a direction of placement of the casing, a video processing circuit for outputting a video to the display, and a switching circuit for switching an angle of the video output from the video processing circuit based on the direction of the placement detected by the direction sensor.

Abstract: Disclosed is an antenna system, including: an antenna which can switch directivity thereof when receiving an analog television broadcasting signal; a switching section to switch the directivity of the antenna; a measurement section to measure radio wave quality of the analog television broadcasting signal received by the antenna by analyzing the analog television broadcasting signal when the directivity of the antenna is switched by the switching section; a storage section to store data of radio wave quality in different directions measured by the measurement section for each channel; and a control section to control the switching section to switch the directivity of the antenna to one direction having a highest radio wave quality among the different directions corresponding to a desired channel when the desired channel is designated.