Abstract:
A smear-desmear filter having the frequency depending group delay characteristics is implemented by a transversal filter having a plurality of delay elements each having the delay time 1/(2f.sub.2), where f.sub.2 is the highest frequency component of an input signal, tap weight coefficient means for providing the product of the output of the tap and the predetermined coefficient which is supplied from a digital memory, and an adder for summing up all the outputs of the tap weight coefficient means. A tap and/or a tap weight coefficient means is provided for every m number of delay elements, where m is an integer larger than 2, thus, the number of tap weight coefficient means is merely 1/m of the number of the delay elements. The tap weight stored in said the digital memory is determined by the position (n) of a tap, a delay time (.tau.) of each delay element, the required delay expansion width (a), and the value of said integer (m). The obtained delay characteristics is sinusoidal in the given frequency band.
Abstract:
An automatic telephone answering device with simultaneous drive for the outgoing message tape (T-1) and the incoming message tape T-2 has a disadvantage in that the calling party's voice cannot be recorded within a section of T-2 (T2-1, T2-3) which is driven simultaneously with the first half (T1-1, T1-3) of T-1. To prevent this disadvantage, T-2 is to be automatically rewound within the wasted section (T2-1 and T2-3). Then, it records the calling party's voice on the section (T3-1 and T3-2). The instant rewinding distance depends on the tape volume on the tape reel but the above rewinding section is not overrun to the previous recording section (T3-1 and T3-2). So, it must have minimum blanks l1, l2, . . . ln.
Abstract:
In the case of driving the endless type outgoing message tape T-1 and the reel-to-reel type incoming message tape T-2 individually by engaging two pinch-rollers 5, 6 independently to a common capstan 4 by engaging mechanism 10, which drives the take-up reel TA which is so constructed as to take up the tape in the case of capstan-driving, with a linking means 25 which restricts the movement of taking up the tape T-2 only when the endless type outgoing message tape T-1 is capstan-driven, the wasteful driving of the reel-to-reel type incoming message tape T-2 on the take-up reel table 16 is avoided while the outgoing message tape T-1; is being driven, and linking of said mechanisms 10, 25 is relieved when driving the incoming message tape T-2 alone and thus hindrance in taking up the tape is eliminated.
Abstract:
A mobile IPv6 dual-stack node engages in IPv6 communication while roaming within an IPv4-only network, for example using ISATAP. First, the node determines that it has moved Bnd obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node uses an IPv6 connect agent to engage in IPv6 communication. The node configures its care-of address using the IPv6 connect agent's routing information and the node's newly-obtained IPv4 address. In one embodiment, the node and the connect agent optimize the handoff when the nodes has moved but still uses the same connect agent. The node sends a binding updates to the connect agents comprising the node's old care-of address and the node's new care-of address. When the connect agent receives a packet destined for the node's previous care-of address, it forwards the packet to the node's currents care-of address, thereby reducing packet loss.
Abstract:
It is an object of the present invention to provide a back-light device and a liquid crystal display whose manufacturing costs are low and wherein the light from light sources is guided to a light-guiding plate efficiently and the heat of the light sources is dissipated efficiently. The back-light device (12) of the liquid crystal panel (10) has a front frame (14) and a rear frame (26). There are provided four optical sheets (16), a light-guiding plate (18), a flexible PCB (20), two light sources (22), and a reflecting sheet (24) between the front frame (14) and the rear frame (26). The flexible PCB (20) has a PCB part (2002) and two erected parts (2003). A resistor (2008) and a thermistor (2010) as electronic parts, and two light sources (22) are installed on the PCB part (2002) in the vicinity of the erected parts (2003). A light-radiating surface (2202) of the light source (22) is pressed to an incident surface (1802) of the light-guiding plate (18) by the erected part (2003).
Abstract:
An IPv6 enabled node finds an IPv6 connect agent by using a Domain Name System (DNS) server. The IPv6 enabled node sends a query to the DNS server and, in response, receives one or more identifiers of one or more IPv6 connect agents. In one embodiment, an identifier comprises the name of an IPv6 connect agent. In this embodiment, the IPv6 enabled node then sends a name of a desired IPv6 connect agent to the DNS server and, in response, receives the address of that IPv6 connect agent. The IPv6 enabled node is then able to engage in IPv6 communication using that IPv6 connect agent. In another embodiment, an identifier comprises the address of an IPv6 connect agent. In this embodiment, the IPv6 enabled node is able to engage in IPv6 communication using that IPv6 connect agent without any further contact with the DNS server.
Abstract:
A mobile IPv6 dual-stack node engages in IPv6 communication while roaming within an IPv4-only network, for example using ISATAP. First, the node determines that it has moved and obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node uses in IPv6 connect agent to engage in IPv6 communication. The node configures its care-of address using the IPv6 connect agent's routing information and the node's newly-obtained IPv4 address. In one embodiment, the node and the connect agent optimize the handoff when the node has moved but still uses the same connect agent. The node sends a binding update to the connect agent comprising the node's old care-of address and the node's new care-of address. When the connect agent receives a packet destined for the node's previous care-of address, it forwards the packet to the node's current care-of address, thereby reducing packet loss.
Abstract:
When a call is received at the TAD from telephone 1 via exchange A2 and exchange B3, the TAD transmits an outgoing message. In response to the aforementioned message, the caller transmits a message or telephone number data regarding his own telephone. After the TAD records the telephone number, it calls up portable telephone 6 by autodialing. When TAD and portable telephone 6 are in a connected condition via base station 5, and if TAD sends the telephone number data in a predetermined format, it will be displayed upon the display unit of portable telephone 6.
Abstract:
A video cassette recorder (VCR) automatically controlled by the "G Code" ("Plus Code") and a television set for monitoring purposes each have their own tuner. A user is able to monitor on the TV set a program designated by the "G Code," even though the VCR does not operate because no videotape has been loaded into the VCR. On the other hand, when a videotape is loaded into the VCR, the user is also able to monitor on the TV set the program, which is being recorded on the VCR, without manually operating the TV set, or monitor on the TV set a program on a channel different from that of the VCR by changing the channel of the tuner for the TV set.